ant_id stringlengths 17 17 | source_url stringlengths 61 61 | project stringlengths 2 35 | bug_class stringclasses 33
values | headline_severity stringclasses 4
values | claude_severity stringclasses 4
values | vendor_severity stringclasses 6
values | maintainer_severity stringclasses 6
values | discovered_by_model stringclasses 5
values | cve_ids listlengths 0 2 | ghsa_ids listlengths 0 3 | target_commit stringclasses 22
values | target_location stringlengths 0 187 | discovery_method stringclasses 2
values | report_title stringlengths 0 276 | report_summary stringlengths 0 1.04k | technical_details stringlengths 0 3.72k | reproduction_notes stringlengths 0 1.43k | acknowledgement stringlengths 0 357 | report_full_text stringlengths 0 20.4k | security_firm_name stringclasses 7
values | security_firm_verdict stringclasses 3
values | upstream_fix_diff stringlengths 0 8.18k | clean_markdown stringlengths 170 13k | raw_html stringlengths 2.76k 80.6k | status stringclasses 4
values | patched bool 2
classes | discovered_on stringdate 2025-11-28 00:00:00 2026-05-14 00:00:00 | committed_at stringdate 2026-02-15 00:00:00 2026-08-13 00:00:00 | hash stringlengths 128 128 | tokens_cl100k_report int64 0 6.37k | tokens_cl100k_diff int64 0 2.64k | tokens_cl100k_markdown int64 56 3.94k | tokens_cl100k_html int64 842 40k | tokens_cl100k_total int64 56 6.59k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ANT-2026-N0ZPQQQ6 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-N0ZPQQQ6 | ffmpeg/ffmpeg | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | fastaudio.c:171 | ANT-2026-N0ZPQQQ6: The ASAN report describes a real, plausible heap-buffer-overflow in ffmpeg's fastaudio decoder at line 171 of fastaudio.c. | A fuzzed input to FFmpeg's FastAudio codec (ffmpeg_AV_CODEC_ID_FASTAUDIO_fuzzer) triggers a heap-buffer-overflow on a WRITE operation at fastaudio.c:171. The decoder writes past the bounds of a heap allocation while processing attacker-controlled audio packet data. Because FFmpeg decoders operate on untrusted media inp... | ASAN reports a heap-buffer-overflow WRITE at fastaudio.c:171 in the FastAudio decoder. The decoder writes decoded samples beyond the end of a heap-allocated buffer, indicating a missing or incorrect bounds check on the output/index computation relative to the allocated size.
Crash signature:
ASAN heap-buffer-overflow ... | Craft a malformed FastAudio bitstream that drives the decode loop past the output buffer bounds
Wrap it in a container (or raw packet) that routes to AV_CODEC_ID_FASTAUDIO
Deliver the file/stream to the target so libavcodec decodes it
Out-of-bounds heap write occurs at fastaudio.c:171
[No reproducer or sanitizer outpu... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-N0ZPQQQ6.
Reference:
ANT-2026-N0ZPQQQ6
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-N0ZPQQQ6: The ASAN report describes a real, plausible heap-buffer-overflow in ffmpeg's fastaudio decoder at line 171 of fastaudio.c.
A fuzzed input to FFmpeg's FastAudio codec (ffmpeg_AV_CODEC_ID_FASTAUDIO_fuzzer) triggers a heap-buffer-overflow on a WRITE operation at fastaudio.c:171. The decoder writes past ... | Ada Logics | true positive | diff --git a/libavcodec/fastaudio.c b/libavcodec/fastaudio.c
index d361b410b9ecc..bab3cb738b921 100644
--- a/libavcodec/fastaudio.c
+++ b/libavcodec/fastaudio.c
@@ -113,6 +113,8 @@ static int fastaudio_decode(AVCodecContext *avctx, AVFrame *frame,
int ret;
subframes = pkt->size / (40 * avctx->ch_layout.nb_channels);
+ ... | # ANT-2026-N0ZPQQQ6: ANT-2026-N0ZPQQQ6 · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
A fuzzed input to FFmpeg's FastAudio codec (ffmpeg_AV_CODEC_ID_FASTAUDIO_f... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-N0ZPQQQ6 · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-27 | 2026-05-28 | cb1bed514d82d5b20d7bee3807f6f890cd332e425a6e1e136b2f2dec0e50b908c22eb33d799560978daa374ec4a7b1f07c316cebcb7693a6006f0ee5a8a5bbb6 | 429 | 168 | 584 | 3,938 | 752 | ||
ANT-2026-RXSADDFE | https://red.anthropic.com/2026/cvd/findings/ANT-2026-RXSADDFE | ffmpeg/ffmpeg | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | g2meet.c:486 | ANT-2026-RXSADDFE: Heap-buffer-overflow in g2meet.c:486 | While decoding a crafted G2M (GoToMeeting) frame, epic_decode_tile() invokes epic_decode_run_length(), which calls is_pixel_on_stack() at g2meet.c:486. That function performs a 4-byte read immediately past the end of a 10912-byte heap buffer that was allocated as the codec's private context via avcodec_alloc_context3()... | ASAN: "READ of size 4 at 0x78b6b98e2ba0 ... 0 bytes after 10912-byte region". The ePIC run-length path indexes the decoder's pixel stack without ensuring the index stays within the private-data allocation, so is_pixel_on_stack() dereferences one 32-bit element past the end of the buffer. The missing bound check on the ... | Craft a G2M bitstream containing an ePIC/JB tile whose run-length data drives the pixel-stack index out of range
Deliver the file/stream to the victim (e.g., upload, media message, transcoding pipeline)
Victim calls avcodec_send_packet(); g2m_decode_frame → epic_decode_tile → epic_decode_run_length → is_pixel_on_stack ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-RXSADDFE.
Reference:
ANT-2026-RXSADDFE
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-RXSADDFE: Heap-buffer-overflow in g2meet.c:486
While decoding a crafted G2M (GoToMeeting) frame, epic_decode_tile() invokes epic_decode_run_length(), which calls is_pixel_on_stack() at g2meet.c:486. That function performs a 4-byte read immediately past the end of a 10912-byte heap buffer that was allocated as ... | Ada Logics | true positive | # ANT-2026-RXSADDFE: ANT-2026-RXSADDFE · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
While decoding a crafted G2M (GoToMeeting) frame, epic_decode_tile() invok... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-RXSADDFE · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-24 | 2026-05-13 | a56ab0d1ce61e11f2549a86f99f831a877d2f40b16e04ddca6c2ffc3c01e10c8e88b97985e4f79df488cde2daf884efbc40dddd8feeda1e21e96f9e569bb30f6 | 986 | 0 | 980 | 4,222 | 980 | |||
ANT-2026-C6E98TYX | https://red.anthropic.com/2026/cvd/findings/ANT-2026-C6E98TYX | liboqs | other | high | high | high | - | Claude Mythos Preview | [] | [
"GHSA-jr5q-r9qx-v738"
] | src/kem/kem.c:645 (OQS_KEM_encaps_derand); src/kem/ntru/kem_ntru_*.c:11 (six constructors) | ANT-2026-C6E98TYX: 01-liboqs-ntru-uninit-fn-ptr | The NTRU constructors in src/kem/ntru/kem_ntru_.c call OQS_MEM_malloc(sizeof(OQS_KEM)) and assign twelve struct fields but omit encaps_derand at offset 88, leaving it with stale heap residue. The public API OQS_KEM_encaps_derand() at kem.c:645 checks only that kem != NULL before tail-jumping through kem->encaps_derand ... | ASAN: "SEGV on unknown address ... caused by a READ memory access ... dereference of a high value address" at kem.c:645 — the 0xbe poison pattern in encaps_derand proves the field was never written post-allocation. Root cause is a code-generation template gap: 33 of 39 KEM constructors set encaps_derand, but the six NT... | Allocate 112-byte chunks and write the desired jump target (e.g., &system) at offset 88 of each
Free the chunks so they populate glibc's 112-byte tcache freelist (LIFO)
Call OQS_KEM_new(OQS_KEM_alg_ntru_hps2048509) — constructor reclaims a groomed chunk via OQS_MEM_malloc and writes fields 0–87 and 96–111, leaving offs... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-C6E98TYX.
Reference:
ANT-2026-C6E98TYX
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-C6E98TYX: 01-liboqs-ntru-uninit-fn-ptr
The NTRU constructors in src/kem/ntru/kem_ntru_
.c call OQS_MEM_malloc(sizeof(OQS_KEM)) and assign twelve struct fields but omit encaps_derand at offset 88, leaving it with stale heap residue. The public API OQS_KEM_encaps_derand() at kem.c:645 checks only that kem != NUL... | Ada Logics | true positive | # ANT-2026-C6E98TYX: ANT-2026-C6E98TYX · liboqs
**Project:** liboqs | **Bug Class:** other
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** GHSA-jr5q-r9qx-v738
## Vulnerability Summary
The NTRU constructors in src/kem/ntru/kem_ntru_.c call OQS... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-C6E98TYX · liboqs</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="... | fixed | true | 2026-04-01 | 2026-05-07 | 036d8ef5dc823244713d07925545a3daa8e7f2b0dcb640d5e603e0b5af1ee56b0006b0a2cc12123774a58528d66c64171413eaaa9c6d62df3ede3fc27b30d600 | 1,007 | 0 | 990 | 5,017 | 990 | |||
ANT-2026-49KSKQPG | https://red.anthropic.com/2026/cvd/findings/ANT-2026-49KSKQPG | selinux | heap-buffer-overflow | low | low | low | - | Claude Mythos Preview | [] | [] | map_ebitmap() | static analysis — not yet dynamically reproduced | ANT-2026-49KSKQPG: Heap buffer overflow in libsepol map_ebitmap() via unbounded ebitmap index used as array index | An unbounded ebitmap index is used directly as an array index in map_ebitmap(), leading to a heap buffer overflow. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-49KSKQPG.
Reference:
ANT-2026-49KSKQPG
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-49KSKQPG: Heap buffer overflow in libsepol map_ebitmap() via unbounded ebitmap index used as array index
An unbounded ebitmap index is used directly as an array index in map_ebitmap(), leading to a heap buffer overflow.
Target
Project:
selinux
Location:
map_ebitmap()
Discovery:
static analysis — not yet dynami... | Trail of Bits | true positive | # ANT-2026-49KSKQPG: ANT-2026-49KSKQPG · selinux
**Project:** selinux | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** -
## Vulnerability Summary
An unbounded ebitmap index is used directly as an array index in map_ebitmap(), leading... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-49KSKQPG · selinux</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t===... | fixed | true | 2026-03-29 | 2026-04-09 | b3bddfd71dbcc31e16e651882b499a41d01609d2b807be15901830163ff0f23eb2e15b1d4187cfc9194adcf034a63557bc348c4775f8006d836f54eb7a0d41c2 | 217 | 0 | 202 | 2,449 | 202 | |||
ANT-2026-VV0PRKKV | https://red.anthropic.com/2026/cvd/findings/ANT-2026-VV0PRKKV | wolfssl/wolfssl | heap-buffer-overflow | medium | high | medium | medium | Claude Mythos Preview | [
"CVE-2026-5447"
] | [
"GHSA-mx4j-fjqx-f8qj"
] | src/x509.c:CertFromX509() | ANT-2026-VV0PRKKV: wolfSSL: heap buffer overflow in CertFromX509() from AuthorityKeyIdentifier size mismatch | In wolfSSL's OpenSSL-compatibility layer, CertFromX509() in src/x509.c converts a parsed certificate back into a Cert structure for re-encoding. When WOLFSSL_AKID_NAME is enabled, it bounds-checked only the AuthorityKeyIdentifier keyIdentifier length (authKeyIdSz) against the fixed-size cert->akid buffer but then copie... | Root cause.
CertFromX509()
(
src/x509.c
) copies the AuthorityKeyIdentifier (AKID) from a
WOLFSSL_X509
into the fixed-size
akid[]
array of a
Cert
structure that is heap-allocated during DER generation. Before the fix, the guard and the copy used different lengths:
if (x509->authKeyIdSz < sizeof(cert->akid)) {
#ifdef W... | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-VV0PRKKV.
Reference:
ANT-2026-VV0PRKKV
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-VV0PRKKV: wolfSSL: heap buffer overflow in CertFromX509() from AuthorityKeyIdentifier size mismatch
In wolfSSL's OpenSSL-compatibility layer, CertFromX509() in src/x509.c converts a parsed certificate back into a Cert structure for re-encoding. When WOLFSSL_AKID_NAME is enabled, it bounds-checked only the Auth... | Calif | true positive | diff --git a/src/x509.c b/src/x509.c
index 3593cd82f47..f4006ffe3ac 100644
--- a/src/x509.c
+++ b/src/x509.c
@@ -11870,25 +11870,28 @@ static int CertFromX509(Cert* cert, WOLFSSL_X509* x509)
return WOLFSSL_FAILURE;
}
- if (x509->authKeyIdSz < sizeof(cert->akid)) {
#ifdef WOLFSSL_AKID_NAME
- cert->rawAkid = 0;... | # ANT-2026-VV0PRKKV: ANT-2026-VV0PRKKV · wolfssl/wolfssl
**Project:** wolfssl/wolfssl | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-5447, GHSA-mx4j-fjqx-f8qj
## Vulnerability Summary
In wo... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-VV0PRKKV · wolfssl/wolfssl</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-03-27 | 2026-03-27 | 1bab7d8c0711e693bd53c3eec2b556b1ba8709ea1e4f3b0719a15ee8eaa70c89eeec4797e90b5ab922b7b8935bd6636effceefe31a976be0d557537919daab7d | 1,275 | 2,642 | 3,943 | 8,695 | 6,585 | ||
ANT-2026-XQVPKKPB | https://red.anthropic.com/2026/cvd/findings/ANT-2026-XQVPKKPB | freerdp/freerdp | double-free | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-64621"
] | [
"GHSA-f27x-frr8-j9hc"
] | client/common/file.c:2536 | static analysis — not yet dynamically reproduced | ANT-2026-XQVPKKPB: Double-free of MonitorIds when parsing malformed selectedmonitors | In client/common/file.c, freerdp_client_rdp_file_apply_to_settings() obtains a raw (non-copied) pointer to settings->MonitorIds via freerdp_settings_get_pointer_writable() and, on the strtoul-overflow error path at line 2536, calls free(list) on that buffer without clearing the owning settings->MonitorIds pointer. When... | freerdp_settings_get_pointer_writable() returns the raw settings->MonitorIds pointer (settings_getters.c:4145-4146), not a copy, so ownership remains with the settings object. When a selectedmonitors token overflows strtoul (val >= UINT32_MAX with errno set), the error branch at file.c:2536 calls free(list) directly an... | Craft a .rdp file containing e.g.
selectedmonitors:s:99999999999999999999999
(optionally preceded by N comma-separated tokens to control chunk size).
Deliver the .rdp file to the victim (phishing/download); FreeRDP parses .rdp files directly from argv (cmdline.c:5693).
During parsing, strtoul overflows (ULONG_MAX with ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-XQVPKKPB.
Reference:
ANT-2026-XQVPKKPB
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-XQVPKKPB: Double-free of MonitorIds when parsing malformed selectedmonitors
In client/common/file.c, freerdp_client_rdp_file_apply_to_settings() obtains a raw (non-copied) pointer to settings->MonitorIds via freerdp_settings_get_pointer_writable() and, on the strtoul-overflow error path at line 2536, calls fre... | Ada Logics | true positive | diff --git a/client/common/file.c b/client/common/file.c
index dc8af42fb1ba..dcd17899de0a 100644
--- a/client/common/file.c
+++ b/client/common/file.c
@@ -2533,7 +2533,6 @@ BOOL freerdp_client_populate_settings_from_rdp_file_unchecked(const rdpFile* fil
if ((val >= UINT32_MAX) && (errno != 0))
{
CommandLineParserFree(p... | # ANT-2026-XQVPKKPB: ANT-2026-XQVPKKPB · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** double-free
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-64621, GHSA-f27x-frr8-j9hc
## Vulnerability Summary
In client/common/f... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-XQVPKKPB · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | disclosed | true | 2026-04-02 | 2026-07-22 | 3a90d073b15799d00f35445781c7d4cf2389ac6ed3dd751727e154c08ea2410bce55fabefc0ad71899fc5da0bcae17903a01978dcda2025fd15c999cc8c35adb | 775 | 121 | 871 | 9,968 | 992 | |
ANT-2026-WQ7HHBE1 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-WQ7HHBE1 | supabase/postgres | other | low | low | - | - | Claude Mythos Preview | [] | [] | ansible/files/postgresql_config/supautils.conf.j2:14 | static analysis — not yet dynamically reproduced | ANT-2026-WQ7HHBE1: Internal admin roles omitted from supautils reserved lists | The supautils config template lists roles the customer-facing postgres user is forbidden from touching, but leaves out supabase_functions_admin (owner of the supabase_functions schema) and supabase_privileged_role (the role supautils itself treats as privileged). On PostgreSQL 15 and earlier, CREATEROLE lets postgres A... | The reserved_roles (line 15) and reserved_memberships (line 14) allow-lists are incomplete: supabase_functions_admin and supabase_privileged_role are platform-internal but not reserved, so supautils does not block ALTER/DROP/GRANT on them. Because the customer postgres role has CREATEROLE, on PG ≤15 it can freely manip... | Connect to the project database as the customer postgres role (has CREATEROLE).
Run ALTER ROLE supabase_functions_admin WITH PASSWORD '...' or DROP ROLE supabase_functions_admin.
Optionally authenticate as supabase_functions_admin to use its net/http grants.
Run GRANT supabase_privileged_role TO authenticated (or any a... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-WQ7HHBE1.
Reference:
ANT-2026-WQ7HHBE1
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-WQ7HHBE1: Internal admin roles omitted from supautils reserved lists
The supautils config template lists roles the customer-facing postgres user is forbidden from touching, but leaves out supabase_functions_admin (owner of the supabase_functions schema) and supabase_privileged_role (the role supautils itself t... | diff --git a/ansible/files/postgresql_config/supautils.conf.j2 b/ansible/files/postgresql_config/supautils.conf.j2
index 984090544f..bbfd61ceab 100644
--- a/ansible/files/postgresql_config/supautils.conf.j2
+++ b/ansible/files/postgresql_config/supautils.conf.j2
@@ -12,5 +12,5 @@ supautils.privileged_extensions_superus... | # ANT-2026-WQ7HHBE1: ANT-2026-WQ7HHBE1 · supabase/postgres
**Project:** supabase/postgres | **Bug Class:** other
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** -
## Vulnerability Summary
The supautils config template lists roles the customer-facing postgres user is for... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-WQ7HHBE1 · supabase/postgres</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | disclosed | true | 2026-05-10 | 2026-05-18 | e047a349b01e4db4382e7004ba1ba6f36db8f1d2c252001eb1f13379db23d1ac587e1ebb98ec4d3195ea1e9de0150a264c0db3bfe9091b90083b3b9989fcdce4 | 562 | 933 | 1,421 | 5,446 | 2,354 | |||
ANT-2026-CJQWKW82 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-CJQWKW82 | postgres/postgres | denial-of-service | high | high | high | high | Claude Opus 4.6 | [
"CVE-2026-6479"
] | [
"GHSA-hwfh-mh4f-m67f"
] | 5241616289cc64e0 | src/backend/tcop/backend_startup.c:637 | static analysis — not yet dynamically reproduced | ANT-2026-CJQWKW82: Pre-auth unbounded recursion in ProcessStartupPacket: alternating SSL/GSS negotiation requests cause infinite recursion when both are rejected. ssl_done/gss_done flags oscillate (true,false)->(false,true) endlessly. No check_stack_depth. Pre-authentication. | Unauthenticated attacker alternates SSL and GSS request packets. After ~40K-80K exchanges the backend crashes from stack overflow (SIGSEGV). On localhost takes seconds. AuthenticationTimeout (60s) is only time bound. | When SSL is rejected, line 637 recurses with ProcessStartupPacket(port, true, SSLok == 'S') → (true,false); when GSS is rejected, line 693 recurses with ProcessStartupPacket(port, GSSok == 'G', true) → (false,true). The guards at lines 574 (!ssl_done) and 639 (!gss_done) therefore never both stay true, so alternating r... | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-CJQWKW82.
Reference:
ANT-2026-CJQWKW82
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-CJQWKW82: Pre-auth unbounded recursion in ProcessStartupPacket: alternating SSL/GSS negotiation requests cause infinite recursion when both are rejected. ssl_done/gss_done flags oscillate (true,false)->(false,true) endlessly. No check_stack_depth. Pre-authentication.
Unauthenticated attacker alternates SSL and... | Calif | true positive | diff --git a/src/backend/tcop/backend_startup.c b/src/backend/tcop/backend_startup.c
index 5abf276c89848..a810e41a9040e 100644
--- a/src/backend/tcop/backend_startup.c
+++ b/src/backend/tcop/backend_startup.c
@@ -496,6 +496,7 @@ ProcessStartupPacket(Port *port, bool ssl_done, bool gss_done)
ProtocolVersion proto;
Memor... | # ANT-2026-CJQWKW82: ANT-2026-CJQWKW82 · postgres/postgres
**Project:** postgres/postgres | **Bug Class:** denial-of-service
**Attributed Model:** Claude Opus 4.6 | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-6479, GHSA-hwfh-mh4f-m67f
## Vulnerability Summary
Unauthentica... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-CJQWKW82 · postgres/postgres</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-04-02 | 2026-05-08 | 6ccb97193bc23f5185d8846690778b6b553b97c7a27eff1ae8a5e80c0f404193c5d139372722332faa52572e486f6d0512238b53e885233b5bf7d1c8d3589f5a | 418 | 1,442 | 1,858 | 6,692 | 3,300 |
ANT-2026-RXYVE4DZ | https://red.anthropic.com/2026/cvd/findings/ANT-2026-RXYVE4DZ | freerdp/freerdp | heap-buffer-overflow | critical | critical | critical | - | Claude Mythos Preview | [
"CVE-2026-40033",
"CVE-2026-44421"
] | [
"GHSA-mpxh-8fq3-x8mh",
"GHSA-mvpx-xj7r-3p3r",
"GHSA-p6r2-4hgm-m6ff"
] | sanitizer_common_interceptors.inc:827 | ANT-2026-RXYVE4DZ: Heap-buffer-overflow in sanitizer_common_interceptors.inc:827 | In FreeRDP's RDPGFX handler, gdi_CacheToSurface (libfreerdp/gdi/gfx.c:1552) validates a destination rectangle that has been clamped to UINT16_MAX, but then passes the original unclamped cacheEntry->width/height to freerdp_image_copy_no_overlap. A malicious RDP server can send a CreateSurface (65535x1), a SurfaceToCache... | ASAN: heap-buffer-overflow WRITE of size 262140, 0 bytes to the right of a 4194344-byte region allocated by winpr_aligned_malloc in gdi_CreateSurface (gfx.c:1200). The bounds check clamps (destPt.x + cacheEntry->width) to UINT16_MAX before validating against the surface, so a destPt.x of 65534 plus a width of 65535 app... | Send RDPGFX CreateSurface with width=65535, height=1 (allocates ~4,194,304-byte surface buffer)
Send RDPGFX SurfaceToCache with rect {0,0,65535,1} to create a cache entry of width=65535
Send RDPGFX CacheToSurface with destPt={65534,15}; clamped rect passes validation but memcpy writes 262,140 bytes starting at offset ~... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-RXYVE4DZ.
Reference:
ANT-2026-RXYVE4DZ
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-RXYVE4DZ: Heap-buffer-overflow in sanitizer_common_interceptors.inc:827
In FreeRDP's RDPGFX handler, gdi_CacheToSurface (libfreerdp/gdi/gfx.c:1552) validates a destination rectangle that has been clamped to UINT16_MAX, but then passes the original unclamped cacheEntry->width/height to freerdp_image_copy_no_ove... | Trail of Bits | true positive | # ANT-2026-RXYVE4DZ: ANT-2026-RXYVE4DZ · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-40033, CVE-2026-44421, GHSA-mpxh-8fq3-x8mh, GHSA-mvpx-xj7... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-RXYVE4DZ · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-03-24 | 2026-04-30 | 0c44262d039d2d96e1bca18c6ba2921c2566dcd498a233f42d427dd2b208cf3b6ebd2e0cb0c30267ec4d9c5269de8379573ba271aeeda56757340fab7ff84161 | 1,018 | 0 | 1,086 | 7,384 | 1,086 | |||
ANT-2026-ZJXVWQEA | https://red.anthropic.com/2026/cvd/findings/ANT-2026-ZJXVWQEA | flex | heap-buffer-overflow | low | low | low | - | Claude Mythos Preview | [] | [] | sf_init() | static analysis — not yet dynamically reproduced | ANT-2026-ZJXVWQEA: Heap buffer overflow in sf_init due to stale stack index when used as library | sf_init retains a stale stack index when the code is used as a library, leading to a heap buffer overflow. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-ZJXVWQEA.
Reference:
ANT-2026-ZJXVWQEA
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-ZJXVWQEA: Heap buffer overflow in sf_init due to stale stack index when used as library
sf_init retains a stale stack index when the code is used as a library, leading to a heap buffer overflow.
Target
Project:
flex
Location:
sf_init()
Discovery:
static analysis — not yet dynamically reproduced
Reproduction
Th... | Trail of Bits | true positive | # ANT-2026-ZJXVWQEA: ANT-2026-ZJXVWQEA · flex
**Project:** flex | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** -
## Vulnerability Summary
sf_init retains a stale stack index when the code is used as a library, leading to a heap buf... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-ZJXVWQEA · flex</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="li... | fixed | true | 2026-03-29 | 2026-04-09 | 90645dbe9ccfac3f9fa3c5562ff776efa99df8791aef9a3b31f25d9d06fb55c029e268824bb85fb1b10569894ab649367ec2547f790ae20214861bf8e1983439 | 210 | 0 | 199 | 2,418 | 199 | |||
ANT-2026-8E67XSC7 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-8E67XSC7 | ffmpeg/ffmpeg | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | libavcodec/adpcm.c:adpcm_decode_frame (ADPCM_PSXC block loop over-reads bytestream; fix adds block_align % channels check in adpcm_decode_init) | ANT-2026-8E67XSC7: Heap-buffer-overflow read in FFmpeg ADPCM PSXC decoder via crafted audio input | Fuzzing the ffmpeg_AV_CODEC_ID_ADPCM_PSXC_DEC_fuzzer entrypoint triggers a heap-buffer-overflow READ in FFmpeg's ADPCM PSXC audio decoder. The crash is reached directly from decoder input, meaning an attacker who can supply a media file or stream decoded as ADPCM PSXC controls the triggering bytes. The out-of-bounds re... | Out-of-bounds heap read in the FFmpeg ADPCM PSXC audio decoder when processing a crafted input stream.
Crash signature:
ASAN heap-buffer-overflow READ (ADPCM PSXC decoder) | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-8E67XSC7.
Reference:
ANT-2026-8E67XSC7
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-8E67XSC7: Heap-buffer-overflow read in FFmpeg ADPCM PSXC decoder via crafted audio input
Fuzzing the ffmpeg_AV_CODEC_ID_ADPCM_PSXC_DEC_fuzzer entrypoint triggers a heap-buffer-overflow READ in FFmpeg's ADPCM PSXC audio decoder. The crash is reached directly from decoder input, meaning an attacker who can suppl... | Ada Logics | true positive | diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c
index e06aa7606b9f3..6ff3dad61302c 100644
--- a/libavcodec/adpcm.c
+++ b/libavcodec/adpcm.c
@@ -294,7 +294,8 @@ static av_cold int adpcm_decode_init(AVCodecContext * avctx)
break;
case AV_CODEC_ID_ADPCM_PSXC:
max_channels = 8;
- if (avctx->ch_layout.nb_channel... | # ANT-2026-8E67XSC7: ANT-2026-8E67XSC7 · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
Fuzzing the ffmpeg_AV_CODEC_ID_ADPCM_PSXC_DEC_fuzzer entrypoint triggers a... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-8E67XSC7 · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-27 | 2026-05-28 | 73ee3cd833361e9f44af411e81c7c9b6633e1f1133b135ecd733be7140244a806f0f0c00759eb3b270c9069f374569cff3f905ef8c528d54be4587df5e37ec70 | 356 | 185 | 539 | 3,325 | 724 | ||
ANT-2026-SJ7ZVBQB | https://red.anthropic.com/2026/cvd/findings/ANT-2026-SJ7ZVBQB | ffmpeg/ffmpeg | heap-buffer-overflow | medium | high | medium | - | Claude Opus 4.6 | [] | [] | mpeg.h:70 | ANT-2026-SJ7ZVBQB: Heap-buffer-overflow in mpeg.h:70 | While demuxing a crafted TiVo TY file, demux_video() in libavformat/ty.c:404 calls ff_parse_pes_pts() on a PES header located at the very end of the 128 KiB chunk buffer. ff_parse_pes_pts() unconditionally dereferences 5 bytes of timestamp data, and the pointer lands 0 bytes past the end of the 131200-byte heap allocat... | ASAN: "READ of size 1 at 0x747fe6227880 ... heap-buffer-overflow ... in ff_parse_pes_pts /src/ffmpeg/libavformat/mpeg.h:70:22". The faulting address is exactly 0 bytes after a 131200-byte region, meaning demux_video() did not ensure at least 5 bytes remained in the chunk before invoking ff_parse_pes_pts() on the PES ti... | Craft a TY file whose record table places a video record's PES header at the very end of the 128 KiB chunk buffer
Deliver the file to the target (download, upload pipeline, transcoder, thumbnailer, etc.)
av_read_frame() → ty_read_packet() → demux_video() calls ff_parse_pes_pts() on the boundary pointer, reading past th... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-SJ7ZVBQB.
Reference:
ANT-2026-SJ7ZVBQB
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-SJ7ZVBQB: Heap-buffer-overflow in mpeg.h:70
While demuxing a crafted TiVo TY file, demux_video() in libavformat/ty.c:404 calls ff_parse_pes_pts() on a PES header located at the very end of the 128 KiB chunk buffer. ff_parse_pes_pts() unconditionally dereferences 5 bytes of timestamp data, and the pointer lands... | Ada Logics | true positive | diff --git a/libavformat/ty.c b/libavformat/ty.c
index c637c35e7ca64..9be027fcca35b 100644
--- a/libavformat/ty.c
+++ b/libavformat/ty.c
@@ -396,12 +396,16 @@ static int demux_video(AVFormatContext *s, TyRecHdr *rec_hdr, AVPacket *pkt)
int got_packet = 0;
if (subrec_type != 0x02 && subrec_type != 0x0c &&
- subre... | # ANT-2026-SJ7ZVBQB: ANT-2026-SJ7ZVBQB · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Opus 4.6 | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
While demuxing a crafted TiVo TY file, demux_video() in libavformat/ty.c:404 cal... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-SJ7ZVBQB · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-24 | 2026-05-13 | 69e72e0559fea11f7d52c6014c97b53d664c439ed2cf9dc0507acf38fa2f6e9d7e20873be9a0ad3cc998b58b3ca3597a415bf96622ea308c0b55af3b29ff79c6 | 989 | 313 | 1,310 | 4,992 | 1,623 | ||
ANT-2026-CVX8213H | https://red.anthropic.com/2026/cvd/findings/ANT-2026-CVX8213H | openmrs/openmrs-module-fhir2 | deserialization | high | high | high | - | [] | [] | 59474d3db4b93f7f | XmlPatchUtils.java:43 | static analysis — not yet dynamically reproduced | ANT-2026-CVX8213H: XXE injection via XML patch processing in third-party library | HTTP PATCH requests with Content-Type application/xml-patch+xml flow from the FHIR resource provider through BaseFhirService.patch() (lines 185-186, PatchTypeEnum.XML_PATCH) into XmlPatchUtils.applyXmlPatch(), which hands the raw body to com.github.dnault:xml-patch:0.3.1's Patcher.patch(). That library instantiates Doc... | The root cause is that applyXmlPatch() delegates parsing of untrusted XML to a third-party library (xml-patch 0.3.1) that calls DocumentBuilderFactory.newInstance() without setFeature() calls to disable external-general-entities, external-parameter-entities, or DOCTYPE declarations. Because no code path sanitizes or re... | Authenticate to the OpenMRS FHIR2 endpoint.
Send PATCH /ws/fhir2/R4/Patient/{id} with Content-Type: application/xml-patch+xml.
Supply body: <!DOCTYPE foo [<!ENTITY xxe SYSTEM "file:///etc/passwd">]>&xxe;.
The xml-patch parser resolves &xxe; and injects the file contents into the patched resource.
Read the exfiltrated d... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-CVX8213H.
Reference:
ANT-2026-CVX8213H
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-CVX8213H: XXE injection via XML patch processing in third-party library
HTTP PATCH requests with Content-Type application/xml-patch+xml flow from the FHIR resource provider through BaseFhirService.patch() (lines 185-186, PatchTypeEnum.XML_PATCH) into XmlPatchUtils.applyXmlPatch(), which hands the raw body to c... | Ophion Security | true positive | diff --git a/api/pom.xml b/api/pom.xml
index 22081cf9c1..0921b003d7 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -60,10 +60,6 @@
<groupId>com.github.java-json-tools</groupId>
<artifactId>json-patch</artifactId>
</dependency>
- <dependency>
- <groupId>com.github.dnault</groupId>
- <artifactId>xml-patch</artifactId... | # ANT-2026-CVX8213H: ANT-2026-CVX8213H · openmrs/openmrs-module-fhir2
**Project:** openmrs/openmrs-module-fhir2 | **Bug Class:** deserialization
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
HTTP PATCH requests with Content-Type application/xml-patch+xml flow f... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-CVX8213H · openmrs/openmrs-module-fhir2</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem... | fixed | true | 2026-04-16 | 2026-05-07 | 88a8d86f8ed597f3af03346cf7f89f5506a12871ad029d75f0ccde81f60aa14f850431b25317bd2fd2a2c72440b83485a273a237a7b258cb5f723c5f96b61076 | 629 | 2,119 | 2,673 | 11,655 | 4,792 | |
ANT-2026-SBF8X04Q | https://red.anthropic.com/2026/cvd/findings/ANT-2026-SBF8X04Q | selinux | type-confusion | medium | medium | medium | - | Claude Mythos Preview | [] | [] | CIL sensitivity alias resolution | static analysis — not yet dynamically reproduced | ANT-2026-SBF8X04Q: Type confusion in CIL sensitivity alias resolution causing heap buffer overflow via alias struct cast to sensitivity struct | An alias struct is incorrectly cast to a sensitivity struct during CIL sensitivity alias resolution, producing a type-confused pointer and resulting in a heap buffer overflow. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-SBF8X04Q.
Reference:
ANT-2026-SBF8X04Q
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-SBF8X04Q: Type confusion in CIL sensitivity alias resolution causing heap buffer overflow via alias struct cast to sensitivity struct
An alias struct is incorrectly cast to a sensitivity struct during CIL sensitivity alias resolution, producing a type-confused pointer and resulting in a heap buffer overflow.
T... | Trail of Bits | true positive | # ANT-2026-SBF8X04Q: ANT-2026-SBF8X04Q · selinux
**Project:** selinux | **Bug Class:** type-confusion
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
An alias struct is incorrectly cast to a sensitivity struct during CIL sensitivity alias r... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-SBF8X04Q · selinux</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t===... | fixed | true | 2026-03-29 | 2026-04-09 | a2ad4e6ef78782ef1f99b0a4a531f4cfc0fdd97ed1acd6af61dfb4a6c1d9566da5bc161c8c2acf5058c8af7a464faa5e01195150eafbec9ffd505212eefb8932 | 223 | 0 | 208 | 2,495 | 208 | |||
ANT-2026-7DG11TPA | https://red.anthropic.com/2026/cvd/findings/ANT-2026-7DG11TPA | wolfssl/wolfssl | other | critical | critical | - | critical | [
"CVE-2026-5194"
] | [] | ConfirmSignature() in wolfcrypt/src/asn.c (HashForSignature at asn.c:15926-15938; verifier dispatch at asn.c:16682; wc_ecc_verify_hash at ecc.c:8578) | ANT-2026-7DG11TPA: [SECURITY: critical] Universal ECDSA certificate forgery for arbitrary hosts | ConfirmSignature() in wolfcrypt/src/asn.c uses the certificate's attacker-controlled sigOID to pick the hash step and the trusted CA's keyOID to pick the verifier, but never checks that the two agree. Setting sigOID to CTC_ED25519/CTC_ED448 makes HashForSignature() a no-op, leaving digestSz at its zero-initialized valu... | The root cause is a missing cross-check between keyOID and sigOID in ConfirmSignature(): HashForSignature() intentionally skips hashing for EdDSA OIDs (asn.c:15926-15938) and returns success without setting *digestSz, which remains 0 from the earlier XMEMSET of sigCtx (asn.c:15652). The dispatch at asn.c:16682 then cal... | Extract the target ECDSA CA's public point Q from its certificate.
Pick random scalar k; compute P = k·Q; set r = x(P) mod n and s = r·k^-1 mod n.
Build an arbitrary tbsCertificate (any CN/SANs, attacker's own leaf key) with issuer = CA and signatureAlgorithm = Ed25519 (or Ed448).
Attach the DER-encoded (r,s) as the si... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-7DG11TPA.
Reference:
ANT-2026-7DG11TPA
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-7DG11TPA: [SECURITY: critical] Universal ECDSA certificate forgery for arbitrary hosts
ConfirmSignature() in wolfcrypt/src/asn.c uses the certificate's attacker-controlled sigOID to pick the hash step and the trusted CA's keyOID to pick the verifier, but never checks that the two agree. Setting sigOID to CTC_E... | # ANT-2026-7DG11TPA: ANT-2026-7DG11TPA · wolfssl/wolfssl
**Project:** wolfssl/wolfssl | **Bug Class:** other
**Attributed Model:** | **Claude Severity:** critical | **Maintainer Severity:** critical
**Security Advisories:** CVE-2026-5194
## Vulnerability Summary
ConfirmSignature() in wolfcrypt/src/asn.c uses the certi... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-7DG11TPA · wolfssl/wolfssl</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-03-26 | 2026-03-26 | 795b824d3a8ae740b46f0ead862b0ea39eba87b6fe127e9eb774ef4e34a17aec032cfd1a1cfeb29958f591e5118f4525adc14699a2e0c6f103f24dc793aa9a99 | 779 | 0 | 650 | 2,249 | 650 | ||||||
ANT-2026-2NNMB24E | https://red.anthropic.com/2026/cvd/findings/ANT-2026-2NNMB24E | openssh/openssh-portable | stack-overflow | low | critical | low | - | Claude Mythos Preview | [] | [] | 9a50a84f55acd8b7 | match.c:92 | ANT-2026-2NNMB24E: stack-overflow in openssh | OpenSSH's match_pattern() in match.c performs unbounded recursion when handling wildcard patterns. The function is reachable from ssh-keygen -Y find-principals via sshsig_find_principals -> check_allowed_keys_line -> cert_filter_principals, where it matches certificate principals (from the attacker-supplied signature) ... | ASAN: 'stack-overflow on address 0x7ffe2411fff8 ... in match_pattern /workspace/repo/match.c:92'. Each '
' in the pattern causes match_pattern() to recurse while scanning the remaining string; a pattern of the form '
?
?
?...' forces one new recursion level per '*?' pair with no depth cap. When the string is long enoug... | Generate a CA key and a user key
Issue a user certificate whose principal is a ~400,000-character string
Sign arbitrary data with the certificate so the cert is embedded in the .sig
Create an allowed_signers line of the form '<"*?" x 200000> cert-authority '
Run ssh-keygen -Y find-principals -s data.sig -f allowed_sign... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-2NNMB24E.
Reference:
ANT-2026-2NNMB24E
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-2NNMB24E: stack-overflow in openssh
OpenSSH's match_pattern() in match.c performs unbounded recursion when handling wildcard patterns. The function is reachable from ssh-keygen -Y find-principals via sshsig_find_principals -> check_allowed_keys_line -> cert_filter_principals, where it matches certificate princ... | Calif | true positive | # ANT-2026-2NNMB24E: ANT-2026-2NNMB24E · openssh/openssh-portable
**Project:** openssh/openssh-portable | **Bug Class:** stack-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
## Vulnerability Summary
OpenSSH's match_pattern() in match.c performs unbounde... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-2NNMB24E · openssh/openssh-portable</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cv... | fixed | true | 2026-03-27 | 2026-05-08 | 116fe51575ccb94d0c8f867a6c2fb617cbf0868bf647baff3ededc9b33b4c0e70698bdbb2d3473a09adbdd86a07545056db8706786efe6e440b53b8cc7ff080e | 775 | 0 | 777 | 4,331 | 777 | ||
ANT-2026-TVG98XT0 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-TVG98XT0 | freerdp/freerdp | auth-bypass | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-73241"
] | [
"GHSA-rqgv-grx4-xm6x"
] | libfreerdp/core/rdstls.c:719 | static analysis — not yet dynamically reproduced | ANT-2026-TVG98XT0: RDSTLS server authentication bypass via PDU-type confusion | In FreeRDP's RDSTLS server handshake, rdstls_recv() (rdstls.c:719) dispatches solely on the wire pduType with no check of peer role or handshake state. The rdpRdstls struct is calloc-allocated, so resultCode starts at 0 == RDSTLS_RESULT_SUCCESS. A client that replies to the server's Capabilities PDU with another Capabi... | Root cause is a fail-open default combined with missing state validation: rdstls_new() calloc-zeroes resultCode to RDSTLS_RESULT_SUCCESS, and rdstls_recv() switches purely on attacker-supplied pduType without consulting rdstls->state or rdstls->server. The state-transition checker only validates the server's own fixed ... | Connect and negotiate PROTOCOL_RDSTLS at X.224, complete TLS.
Receive the server's RDSTLS Capabilities PDU.
Reply with an 8-byte RDSTLS_TYPE_CAPABILITIES PDU (version=1,type=1,dataType=1,versions=1) instead of an Authentication Request (alternatively send RDSTLS_TYPE_AUTHRSP with resultCode=0).
rdstls_recv() routes it ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-TVG98XT0.
Reference:
ANT-2026-TVG98XT0
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-TVG98XT0: RDSTLS server authentication bypass via PDU-type confusion
In FreeRDP's RDSTLS server handshake, rdstls_recv() (rdstls.c:719) dispatches solely on the wire pduType with no check of peer role or handshake state. The rdpRdstls struct is calloc-allocated, so resultCode starts at 0 == RDSTLS_RESULT_SUCCE... | Ada Logics | true positive | diff --git a/libfreerdp/core/rdstls.c b/libfreerdp/core/rdstls.c
index e076caf75116..313e9eb53a80 100644
--- a/libfreerdp/core/rdstls.c
+++ b/libfreerdp/core/rdstls.c
@@ -33,8 +33,8 @@
#include "transport.h"
#include "utils.h"
-#define RDSTLS_VERSION_1 0x01
-#define RDSTLS_VERSION_2 0x02
+#define RDSTLS_VERSION_1 0x01u... | # ANT-2026-TVG98XT0: ANT-2026-TVG98XT0 · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** auth-bypass
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-73241, GHSA-rqgv-grx4-xm6x
## Vulnerability Summary
In FreeRDP's RDSTL... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-TVG98XT0 · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-04-02 | 2026-07-22 | 2cf7b2bd21a389dd592adf2a0d7ead11432494a6d795895b7d0ab3e05c1f8adb1418e8dc22389634c945255804aecb4e72f039893f5a6875409616092f167c2c | 652 | 2,396 | 3,024 | 17,703 | 5,420 | |
ANT-2026-XKHXVCFV | https://red.anthropic.com/2026/cvd/findings/ANT-2026-XKHXVCFV | supabase/postgres | other | low | low | - | - | Claude Mythos Preview | [] | [] | ansible/tasks/internal/admin-mgr.yml:11 | static analysis — not yet dynamically reproduced | ANT-2026-XKHXVCFV: Root-executed binaries fetched from S3 without integrity check | Several Ansible tasks (admin-mgr.yml:11, admin-api.yml:40-44, supabase-admin-agent.yml:51-68) use get_url to pull tarballs from https://supabase-public-artifacts-bucket.s3.amazonaws.com/ and install the contents as root-run binaries (admin-mgr is a NOPASSWD sudo target; supabase-admin-agent runs as root via systemd). N... | The get_url tasks omit the
checksum:
parameter, so integrity of the fetched tarball depends solely on TLS transport and the security of the S3 bucket. Because the extracted binaries are installed into root-privileged execution paths (NOPASSWD sudoers entry for /usr/bin/admin-mgr and a root systemd unit for supabase-adm... | Obtain write access to supabase-public-artifacts-bucket (or establish a TLS-trusted MITM on the build network).
Replace a referenced tarball (e.g. supabase-admin-api__linux_arm64.tar.gz) with a trojaned build.
Wait for the next AMI/qcow2 image build; Ansible get_url fetches the tarball without checksum verification.
Tr... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-XKHXVCFV.
Reference:
ANT-2026-XKHXVCFV
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-XKHXVCFV: Root-executed binaries fetched from S3 without integrity check
Several Ansible tasks (admin-mgr.yml:11, admin-api.yml:40-44, supabase-admin-agent.yml:51-68) use get_url to pull tarballs from https://supabase-public-artifacts-bucket.s3.amazonaws.com/ and install the contents as root-run binaries (admi... | diff --git a/ansible/files/adminapi.service.j2 b/ansible/files/adminapi.service.j2
index 305d1ac629..4e956703a5 100644
--- a/ansible/files/adminapi.service.j2
+++ b/ansible/files/adminapi.service.j2
@@ -14,7 +14,7 @@ Restart=always
RestartSec=3
TimeoutStopSec=10
Environment="AWS_USE_DUALSTACK_ENDPOINT=true"
-{% if qemu... | # ANT-2026-XKHXVCFV: ANT-2026-XKHXVCFV · supabase/postgres
**Project:** supabase/postgres | **Bug Class:** other
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** -
## Vulnerability Summary
Several Ansible tasks (admin-mgr.yml:11, admin-api.yml:40-44, supabase-admin-agent... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-XKHXVCFV · supabase/postgres</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-05-10 | 2026-05-18 | 1b5a9a965ae05bb37cfce6d4b4b02c96f9fc8d5224f919cb1295890545119c82fa29b858b54e2114cfeb8cd8bd88b85f6fe03325b6edf61cbf01ae6b3b91197c | 568 | 2,164 | 2,671 | 8,301 | 4,835 | |||
ANT-2026-B615AQ9E | https://red.anthropic.com/2026/cvd/findings/ANT-2026-B615AQ9E | exim/exim | off-by-one | medium | high | high | medium | Claude Mythos Preview | [
"CVE-2026-40685"
] | [] | expand.c:2399 | static analysis — not yet dynamically reproduced | ANT-2026-B615AQ9E: Exim dewrap() Off-By-One OOB Read → Code Execution | The dewrap() function in expand.c (lines 2399-2423) mishandles input where a backslash is immediately followed by the null terminator. The pointer p is incremented twice — once for the backslash and once for the assumed escaped character — advancing it past the end of the string into adjacent heap memory. An attacker w... | The escape-handling path unconditionally performs p++ for the backslash and p++ again for the escaped character without first checking whether the character after the backslash is '\0'. When the backslash is the final byte of the buffer, the second increment moves p one byte past the null terminator, and subsequent pro... | Spray the heap so attacker-chosen or sensitive data lies adjacent to the input buffer
Submit malformed JSON whose string content ends with a lone backslash before the null terminator
Invoke the extract json trigger, causing dewrap() to read past the null and return out-of-bounds bytes
[No reproducer or sanitizer outpu... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-B615AQ9E.
Reference:
ANT-2026-B615AQ9E
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-B615AQ9E: Exim dewrap() Off-By-One OOB Read → Code Execution
The dewrap() function in expand.c (lines 2399-2423) mishandles input where a backslash is immediately followed by the null terminator. The pointer p is incremented twice — once for the backslash and once for the assumed escaped character — advancing ... | Calif | true positive | # ANT-2026-B615AQ9E: ANT-2026-B615AQ9E · exim/exim
**Project:** exim/exim | **Bug Class:** off-by-one
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-40685
## Vulnerability Summary
The dewrap() function in expand.c (lines 2399-2... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-B615AQ9E · exim/exim</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t=... | fixed | true | 2026-03-30 | 2026-05-08 | 63eb8de51e73fbb8f1fc13cc19411badec1ea1d06bc18de4b32e6b64d018c1cb0057c933b8b5f2cc66541e6632a67f6898dbd2a27c45c4da35e8337751cd4e31 | 402 | 0 | 407 | 3,563 | 407 | ||
ANT-2026-YZAKBHEW | https://red.anthropic.com/2026/cvd/findings/ANT-2026-YZAKBHEW | facebook/hermes | heap-buffer-overflow | critical | critical | critical | - | Claude Mythos Preview | [] | [
"GHSA-9qm2-7vmf-h64f",
"GHSA-rr47-5jvp-646v"
] | hermes.cpp:262 | ANT-2026-YZAKBHEW: Heap-buffer-overflow in hermes.cpp:262 | Hermes's TextEncoder.prototype.encodeInto passes its destination argument through getTypedArrayBuffer() in JSIUtils.cpp, which reads thebuffer,byteOffset, andbyteLengthproperties off the object without verifying the object is a real TypedArray or that the claimed length fits the backing ArrayBuffer. A 646-byte JavaScri... | ASAN: "heap-buffer-overflow on address 0x602000005018 ... WRITE of size 1" in convertUTF16ToUTF8BufferWithReplacements (UTF8.cpp:149:19). The root cause is getTypedArrayBuffer() duck-typing the destination: it trusts user-controlled
byteLength
/
byteOffset
properties instead of validating them against the real ArrayBuf... | Allocate a small ArrayBuffer (e.g., 8 bytes).
Construct a plain JS object with
buffer
set to that ArrayBuffer,
byteOffset: 0
, and a large spoofed
byteLength
(e.g., 1000000).
Call new TextEncoder().encodeInto(largeString, fakeView) with a long string (e.g., 'A'.repeat(100000)).
encodeInto writes UTF-8 bytes past the 8-... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-YZAKBHEW.
Reference:
ANT-2026-YZAKBHEW
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-YZAKBHEW: Heap-buffer-overflow in hermes.cpp:262
Hermes's TextEncoder.prototype.encodeInto passes its destination argument through getTypedArrayBuffer() in JSIUtils.cpp, which reads the
buffer
,
byteOffset
, and
byteLength
properties off the object without verifying the object is a real TypedArray or that the ... | Trail of Bits | true positive | diff --git a/API/hermes/extensions/JSIUtils.cpp b/API/hermes/extensions/JSIUtils.cpp
index 92f4c1acf89..e53ad607dd1 100644
--- a/API/hermes/extensions/JSIUtils.cpp
+++ b/API/hermes/extensions/JSIUtils.cpp
@@ -45,6 +45,13 @@ TypedArrayBufferInfo getTypedArrayBuffer(
throwTypeError(rt, detachedErrorMessage);
}
+ // byte... | # ANT-2026-YZAKBHEW: ANT-2026-YZAKBHEW · facebook/hermes
**Project:** facebook/hermes | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** GHSA-9qm2-7vmf-h64f, GHSA-rr47-5jvp-646v
## Vulnerability Summary
... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-YZAKBHEW · facebook/hermes</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-03-24 | 2026-04-30 | b8f68e30d2504bc523231e47bed1dc203ca4d7040ace64aed55cb014c904c4d4926560b4e62873f8fa6ecd36aafc7e8931ec45db3f926ae30a1560fd4c9f18e3 | 830 | 1,034 | 1,904 | 6,467 | 2,938 | ||
ANT-2026-8DRZW7VM | https://red.anthropic.com/2026/cvd/findings/ANT-2026-8DRZW7VM | cisco-talos/clamav | integer-overflow | high | high | high | high | Claude Mythos Preview | [
"CVE-2026-20215"
] | [
"GHSA-6gff-7f37-2v35"
] | libclamav/7z/7zIn.c:SzReadSubStreamsInfo (7zIn.c:771) | static analysis — not yet dynamically reproduced | ANT-2026-8DRZW7VM: Integer overflow in 7z SubStreams count leading to heap buffer overflow | An integer overflow when computing the SubStreams count in the 7z archive parser results in an undersized allocation and subsequent heap buffer overflow. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-8DRZW7VM.
Reference:
ANT-2026-8DRZW7VM
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-8DRZW7VM: Integer overflow in 7z SubStreams count leading to heap buffer overflow
An integer overflow when computing the SubStreams count in the 7z archive parser results in an undersized allocation and subsequent heap buffer overflow.
Target
Project:
cisco-talos/clamav
Location:
libclamav/7z/7zIn.c:SzReadSubS... | Trail of Bits | true positive | # ANT-2026-8DRZW7VM: ANT-2026-8DRZW7VM · cisco-talos/clamav
**Project:** cisco-talos/clamav | **Bug Class:** integer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-20215, GHSA-6gff-7f37-2v35
## Vulnerability Summary
An i... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-8DRZW7VM · cisco-talos/clamav</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_them... | fixed | true | 2026-03-29 | 2026-04-09 | 67ced60afd5a1e4a42149c7ab50f3c46bf4db111cb82f29c246c6a1e74f7644512439a18d8fa6b6a3bd1d3f13b5f4282d8195e21a3a4a5b4e57029947237f85f | 241 | 0 | 266 | 2,661 | 266 | |||
ANT-2026-BBV63KVS | https://red.anthropic.com/2026/cvd/findings/ANT-2026-BBV63KVS | ffmpeg/ffmpeg | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | libavcodec/apv_decode.c:apv_decode_tile_component | ANT-2026-BBV63KVS: Heap-buffer-overflow READ in FFmpeg APV decoder via malformed APV input | A heap-buffer-overflow read occurs in FFmpeg's APV (AV_CODEC_ID_APV) decoder when processing fuzzer-generated input. | Crash signature:
ASAN heap-buffer-overflow READ | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-BBV63KVS.
Reference:
ANT-2026-BBV63KVS
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-BBV63KVS: Heap-buffer-overflow READ in FFmpeg APV decoder via malformed APV input
A heap-buffer-overflow read occurs in FFmpeg's APV (AV_CODEC_ID_APV) decoder when processing fuzzer-generated input.
Target
Project:
ffmpeg/ffmpeg
Location:
libavcodec/apv_decode.c:apv_decode_tile_component
Technical Details
Cras... | Ada Logics | true positive | diff --git a/libavcodec/apv_decode.c b/libavcodec/apv_decode.c
index c0615ab4105f0..c44d5d21ad699 100644
--- a/libavcodec/apv_decode.c
+++ b/libavcodec/apv_decode.c
@@ -214,14 +214,13 @@ static int apv_decode_tile_component(AVCodecContext *avctx, void *data,
{
APVRawFrame *input = data;
APVDecodeCo... | # ANT-2026-BBV63KVS: ANT-2026-BBV63KVS · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
A heap-buffer-overflow read occurs in FFmpeg's APV (AV_CODEC_ID_APV) decod... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-BBV63KVS · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-27 | 2026-05-28 | 39285852ddac9e26a958231f1bfa5994d97fd0cb818634e126bc0538215483bf0dbd8f59cae1f073f42eb5bb0eeb69f53078e4986a421e3169269e6262ba5cd3 | 217 | 412 | 629 | 3,275 | 1,041 | ||
ANT-2026-TJ0ZJHM6 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-TJ0ZJHM6 | ffmpeg/ffmpeg | heap-buffer-overflow | medium | critical | medium | - | Claude Mythos Preview | [] | [] | assenc.c:189 | ANT-2026-TJ0ZJHM6: Heap-buffer-overflow in assenc.c:189 | A 336-byte crafted Matroska file, when processed by FFmpeg with subtitle stream copy to the ASS output format, triggers a heap underflow in the ASS muxer's write_packet function at libavformat/assenc.c:189. The out-of-bounds read accesses memory one byte before a 94-byte heap buffer that was allocated via realloc in ma... | ASAN: READ of size 1 at an address 1 byte to the left of a 94-byte heap region. The ASS encoder's write_packet reads from index -1 of a packet buffer produced by the Matroska demuxer's matroska_decode_buffer, indicating a missing lower-bound check or an off-by-one when scanning backward in the subtitle payload.
Crash ... | Craft a 336-byte Matroska file containing a malformed subtitle stream
Invoke FFmpeg on the file with subtitle stream copy (-c:s copy or equivalent) targeting an .ass output
Demuxer allocates the subtitle buffer in matroska_decode_buffer (matroskadec.c:1742)
ASS muxer write_packet (assenc.c:189) reads 1 byte before the ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-TJ0ZJHM6.
Reference:
ANT-2026-TJ0ZJHM6
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-TJ0ZJHM6: Heap-buffer-overflow in assenc.c:189
A 336-byte crafted Matroska file, when processed by FFmpeg with subtitle stream copy to the ASS output format, triggers a heap underflow in the ASS muxer's write_packet function at libavformat/assenc.c:189. The out-of-bounds read accesses memory one byte before a ... | Ada Logics | true positive | # ANT-2026-TJ0ZJHM6: ANT-2026-TJ0ZJHM6 · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
## Vulnerability Summary
A 336-byte crafted Matroska file, when processed by FFmpeg with subtit... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-TJ0ZJHM6 · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-24 | 2026-05-13 | 7df1fc2c57f4f4a5b43206602da2173169994a829ec541ebf18ed6ef2be0d20072b0c3e797296fca1fe1bc0c160e89341698c3f201e440207adc2ecf0ef885fc | 718 | 0 | 711 | 3,998 | 711 | |||
ANT-2026-FW0V6SAJ | https://red.anthropic.com/2026/cvd/findings/ANT-2026-FW0V6SAJ | dhis2/dhis2-core | sql-injection | high | high | high | - | [
"CVE-2026-55084"
] | [
"GHSA-pwmg-mvjw-4m23"
] | 5c98fe9d15b8033f | DefaultSqlViewService.java:262 | static analysis — not yet dynamically reproduced | ANT-2026-FW0V6SAJ: SQL Injection via Unquoted Column Name in SqlView Filter Parameter | The /api/sqlViews/{uid}/data endpoint accepts a filter parameter of the form columnName:operator:value. In DefaultSqlViewService.getFilterQuery(), the columnName portion is concatenated raw into the SQL string, while only the operator's value is parameterized. Existing sanitization (ILLEGAL_KEYWORDS, QUERY_NAME_REGEX, ... | getFilterQuery() builds the clause as
filter += sqlHelper.whereAnd() + " " + columnName + " " + operatorWithPlaceholder
, where columnName is split[0] taken directly from the user-supplied filter parameter with no regex check, allowlist, or quoting. The resulting string is passed to jdbcTemplate.queryForRowSet(sql, arg... | Identify any SqlView {uid} the user can read.
Send GET /api/sqlViews/{uid}/data?filter=1%3D1%20UNION%20SELECT%20username%2Cpassword%20FROM%20userinfo--:eq:x
The column name '1=1 UNION SELECT username,password FROM userinfo--' is concatenated into the WHERE clause; '--' comments out the remainder of the generated SQL.
R... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-FW0V6SAJ.
Reference:
ANT-2026-FW0V6SAJ
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-FW0V6SAJ: SQL Injection via Unquoted Column Name in SqlView Filter Parameter
The /api/sqlViews/{uid}/data endpoint accepts a filter parameter of the form columnName:operator:value. In DefaultSqlViewService.getFilterQuery(), the columnName portion is concatenated raw into the SQL string, while only the operator... | Ophion Security | true positive | diff --git a/dhis-2/dhis-services/dhis-service-administration/src/main/java/org/hisp/dhis/sqlview/DefaultSqlViewService.java b/dhis-2/dhis-services/dhis-service-administration/src/main/java/org/hisp/dhis/sqlview/DefaultSqlViewService.java
index 790b303435ed..aa0c63a80408 100644
--- a/dhis-2/dhis-services/dhis-service-a... | # ANT-2026-FW0V6SAJ: ANT-2026-FW0V6SAJ · dhis2/dhis2-core
**Project:** dhis2/dhis2-core | **Bug Class:** sql-injection
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-55084, GHSA-pwmg-mvjw-4m23
## Vulnerability Summary
The /api/sqlViews/{uid}/data endpoi... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-FW0V6SAJ · dhis2/dhis2-core</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme"... | fixed | true | 2026-04-16 | 2026-05-07 | 68ded1ff1ee7e9e30fd004f1ec1bc8aeafe4c6d0dc6f40776fa19d937fbb76645beff98c9faa848cdeac10cb56957abd740b6f68d3b7846d3c5c9cf93c40babb | 590 | 1,920 | 2,473 | 9,619 | 4,393 | |
ANT-2026-K2T27KG9 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-K2T27KG9 | selinux | stack-buffer-overflow | medium | medium | medium | - | Claude Mythos Preview | [] | [] | discard_tunables() | static analysis — not yet dynamically reproduced | ANT-2026-K2T27KG9: Stack buffer overflow in libsepol discard_tunables() via excessive tunables in conditional expression | A stack buffer overflow occurs in libsepol's discard_tunables() when processing a conditional expression containing an excessive number of tunables. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-K2T27KG9.
Reference:
ANT-2026-K2T27KG9
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-K2T27KG9: Stack buffer overflow in libsepol discard_tunables() via excessive tunables in conditional expression
A stack buffer overflow occurs in libsepol's discard_tunables() when processing a conditional expression containing an excessive number of tunables.
Target
Project:
selinux
Location:
discard_tunables... | Trail of Bits | true positive | # ANT-2026-K2T27KG9: ANT-2026-K2T27KG9 · selinux
**Project:** selinux | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
A stack buffer overflow occurs in libsepol's discard_tunables() when processing a c... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-K2T27KG9 · selinux</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t===... | fixed | true | 2026-03-29 | 2026-04-09 | 776103f32240f8f1222d292911f78bf6636771cfd9b11790248b42af4b1b8b573352d12ee79afe7d68bc9aea13a1551a344aa7e8a4d7bdd4d27b1cac0310dd07 | 219 | 0 | 206 | 2,458 | 206 | |||
ANT-2026-1BCAFJCC | https://red.anthropic.com/2026/cvd/findings/ANT-2026-1BCAFJCC | torvalds/linux | use-after-free | high | high | - | high | [
"CVE-2026-31554"
] | [] | futex_hash_free() in kernel/futex/core.c; requeue_futex() in kernel/futex/requeue.c | ANT-2026-1BCAFJCC: futex: UAF in private-hash teardown via cross-process sys_futex_requeue leading giving LPE | A process P can allocate a private futex hash via prctl(PR_FUTEX_HASH) and then use sys_futex_requeue() to move another process C's shared-futex waiter onto a bucket in P's private table, rewriting C's futex_q.lock_ptr to point inside P's mm->futex_phash. When P exits, futex_hash_free() calls kvfree(fph) directly with ... | The resize path for the private hash uses refcounting, but the exit path in futex_hash_free() simply does kvfree(rcu_dereference_raw(mm->futex_phash)) without verifying the table is empty. The comment in requeue_futex() assumes hb1 and hb2 belong to the same futex_hash_bucket_private, which fails when requeueing a shar... | Process C submits IORING_OP_FUTEX_WAITV on a shared-mapped futex, parking C's futex_q on the global hash.
Process P calls prctl(PR_FUTEX_HASH, PR_FUTEX_HASH_SET_SLOTS, 2), allocating a ~192-byte futex_private_hash in kmalloc-256.
P calls sys_futex_requeue with source = C's shared futex and dest = a FUTEX2_PRIVATE futex... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-1BCAFJCC.
Reference:
ANT-2026-1BCAFJCC
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-1BCAFJCC: futex: UAF in private-hash teardown via cross-process sys_futex_requeue leading giving LPE
A process P can allocate a private futex hash via prctl(PR_FUTEX_HASH) and then use sys_futex_requeue() to move another process C's shared-futex waiter onto a bucket in P's private table, rewriting C's futex_q.... | diff --git a/kernel/futex/syscalls.c b/kernel/futex/syscalls.c
index 743c7a72823782..77ad9691f6a613 100644
--- a/kernel/futex/syscalls.c
+++ b/kernel/futex/syscalls.c
@@ -459,6 +459,14 @@ SYSCALL_DEFINE4(futex_requeue,
if (ret)
return ret;
+ /*
+ * For now mandate both flags are identical, like the sys_futex()
+ * in... | # ANT-2026-1BCAFJCC: ANT-2026-1BCAFJCC · torvalds/linux
**Project:** torvalds/linux | **Bug Class:** use-after-free
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-31554
## Vulnerability Summary
A process P can allocate a private futex hash via prctl(... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-1BCAFJCC · torvalds/linux</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");... | fixed | true | 2026-03-24 | 2026-03-24 | a894326e44eab8c46073384ca167d21d0639a88d42502b0b9079e4303ea321f71a1c1b7554ca427b42e0490e0b84a01fcb9c872f5ce88defebe79bee5f23d4c2 | 937 | 210 | 1,015 | 13,976 | 1,225 | |||||
ANT-2026-TAV704VS | https://red.anthropic.com/2026/cvd/findings/ANT-2026-TAV704VS | freerdp/freerdp | rce | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-64624"
] | [
"GHSA-rq8f-9xjh-pr3m"
] | client/common/file.c:938 | static analysis — not yet dynamically reproduced | ANT-2026-TAV704VS: .rdp file lines injected as CLI options enabling command execution | freerdp_client_parse_rdp_file_buffer_int() at client/common/file.c:938 appends any .rdp line beginning with '/' to file->args, which is later passed wholesale to freerdp_client_settings_parse_command_line() (file.c:~2605). This exposes every CLI switch to the .rdp author, including /rdp2tcp:, which causes channels/rdp2... | The .rdp parser falls back to treating any unmatched '/'-prefixed line as a raw argv option with no allowlist, collapsing the trust boundary between an externally-delivered interchange file and local command-line configuration. Because /rdp2tcp: is a valid CLI option whose value is handed straight to CreateProcessA()/f... | file.c:938-943 appends any '/'-prefixed .rdp line verbatim to file->args via freerdp_client_add_option()
file.c:2600-2610 passes file->args to freerdp_client_settings_parse_command_line() — the full CLI parser
cmdline.c:5574-5577 accepts /rdp2tcp: and stores it in FreeRDP_RDP2TCPArgs
cmdline.c:6386-6402 adds and loads ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-TAV704VS.
Reference:
ANT-2026-TAV704VS
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-TAV704VS: .rdp file lines injected as CLI options enabling command execution
freerdp_client_parse_rdp_file_buffer_int() at client/common/file.c:938 appends any .rdp line beginning with '/' to file->args, which is later passed wholesale to freerdp_client_settings_parse_command_line() (file.c:~2605). This expose... | Ada Logics | true positive | diff --git a/client/common/CMakeLists.txt b/client/common/CMakeLists.txt
index 79b2700cf3d5..8b0952ec2c1f 100644
--- a/client/common/CMakeLists.txt
+++ b/client/common/CMakeLists.txt
@@ -50,6 +50,11 @@ else()
set(OPT_FUSE_DEFAULT OFF)
endif()
+option(WITH_EMBEDDED_CLI_IN_RDP_FILES "[dangrous] allow embedded cli argumen... | # ANT-2026-TAV704VS: ANT-2026-TAV704VS · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** rce
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-64624, GHSA-rq8f-9xjh-pr3m
## Vulnerability Summary
freerdp_client_parse_rdp_f... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-TAV704VS · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | disclosed | true | 2026-04-02 | 2026-07-22 | 9414feb034ec0b96d72acb97d9a689482815eddf76e8bb5ca1ffec484ed7f1332f728b0de81285e8cf7fe93b84d128b420fb8b71e4832301886d0ca16c5e14f6 | 706 | 445 | 1,139 | 7,054 | 1,584 | |
ANT-2026-BTRNT5A3 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-BTRNT5A3 | supabase/supabase | broken-access-control | high | high | - | - | Claude Mythos Preview | [] | [] | packages/marketing/src/go/actions/submitForm.ts:62 | static analysis — not yet dynamically reproduced | ANT-2026-BTRNT5A3: Server action accepts client-controlled CRM backend targets | submitFormActionis exported from a'use server'module and receives the entirecrm: GoFormCrmConfigobject as a positional argument from a client component, without server-side binding or validation. Because Next.js exposes every exported server action as a POST endpoint whose arguments are deserialised from the request bo... | The root cause is treating a server-action positional argument as trusted configuration: the
crm
object is passed from a
'use client'
caller rather than being closed over with
.bind()
in a Server Component or resolved server-side, and it is not schema-validated on entry. Any client that can POST to the action endpoint ... | Load the marketing site and extract the Next.js server-action identifier for
submitFormAction
from the client bundle (or capture a legitimate form submission).
Craft a POST body where
crm.notion.database_id
points to a different Notion database shared with the same integration, and set
columnMap
/
staticProperties
to a... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-BTRNT5A3.
Reference:
ANT-2026-BTRNT5A3
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-BTRNT5A3: Server action accepts client-controlled CRM backend targets
submitFormAction
is exported from a
'use server'
module and receives the entire
crm: GoFormCrmConfig
object as a positional argument from a client component, without server-side binding or validation. Because Next.js exposes every exported s... | diff --git a/apps/www/_go/lead-gen/example-lead-gen.tsx b/apps/www/_go/lead-gen/example-lead-gen.tsx
index 81c1187744b1b..8c25c972e7fbf 100644
--- a/apps/www/_go/lead-gen/example-lead-gen.tsx
+++ b/apps/www/_go/lead-gen/example-lead-gen.tsx
@@ -224,6 +224,7 @@ alter table posts enable row level security;`,
},
{
type: '... | # ANT-2026-BTRNT5A3: ANT-2026-BTRNT5A3 · supabase/supabase
**Project:** supabase/supabase | **Bug Class:** broken-access-control
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
submitFormActionis exported from a'use server'module and receives... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-BTRNT5A3 · supabase/supabase</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-05-10 | 2026-05-18 | 7334a6ee4f96e9391bad4fd6fc61c9031fc10172a8e48a573dc1345665c0f9b67b2d490eac6bb956067bce68acab746f67bebae3a2c1e46c5df8a416795a35a5 | 688 | 2,169 | 2,732 | 9,009 | 4,901 | |||
ANT-2026-50T0MN89 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-50T0MN89 | u-boot/u-boot | oob-write | high | high | high | - | Claude Mythos Preview | [] | [] | 135bc3756ecb63d7 | ANT-2026-50T0MN89: U-Boot EFI Image Loader: Out-of-Bounds Write via Unbounded PE Relocation | A heap out-of-bounds write in U-Boot's EFI image loader. The PE relocation handler inefi_loader_relocate()computes write targets from attacker-controlledVirtualAddressand entry offsets without validating against the allocated image buffer bounds. A crafted EFI binary withSizeOfImage=0and relocation entries at large RVA... | ASAN: "SEGV on unknown address 0x0001deadbeef (pc 0x0001deadbeef ...) Hint: PC is at a non-executable region. Maybe a wild jump?" — the root cause is that efi_loader_relocate() trusts the PE header's SizeOfImage and the .reloc block's VirtualAddress/entry offsets without verifying that the derived pointer falls within ... | Reproduce against the commit listed above as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-50T0MN89.
Reference:
ANT-2026-50T0MN89
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-50T0MN89: U-Boot EFI Image Loader: Out-of-Bounds Write via Unbounded PE Relocation
A heap out-of-bounds write in U-Boot's EFI image loader. The PE relocation handler in
efi_loader_relocate()
computes write targets from attacker-controlled
VirtualAddress
and entry offsets without validating against the allocate... | Calif | true positive | # ANT-2026-50T0MN89: ANT-2026-50T0MN89 · u-boot/u-boot
**Project:** u-boot/u-boot | **Bug Class:** oob-write
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
A heap out-of-bounds write in U-Boot's EFI image loader. The PE relocation handler in... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-50T0MN89 · u-boot/u-boot</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-30 | 2026-05-08 | e61613e4d8ba7f3efbccea262f6211cc505fdb23b85b340ea4e2395be305420b771b54d0f8f0cf5135ffed94283a6a33700fb2fd0ef433f107b6a34c14ef9743 | 744 | 0 | 723 | 3,884 | 723 | |||
ANT-2026-QRPT15J8 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-QRPT15J8 | duckdb | stack-buffer-overflow | high | critical | high | - | Claude Mythos Preview | [] | [
"GHSA-vc62-m939-7mqr"
] | sanitizer_common_interceptors.inc:827 | ANT-2026-QRPT15J8: Stack-buffer-overflow in sanitizer_common_interceptors.inc:827 | DuckDB's parquet extension decodes dictionary-encoded columns using a fixed 128-byte stack buffer (aligned_data) inRleBpDecoder::GetBatch<unsigned int>. A malformed Parquet file can specify a bit width that causesBitUnpackAlignedInternaltomemcpymore unpacked data than this buffer can hold, writing 252 bytes past its en... | ASAN: stack-buffer-overflow, WRITE of size 252. The
memcpy
in
BitUnpackAlignedInternal
(decode_utils.hpp:105) writes past the 128-byte stack array
aligned_data
(frame offset [160, 288)) because the unpacked output size — derived from an attacker-controlled bit width in the Parquet file — is not validated against the fi... | Craft a Parquet file with a dictionary-encoded column whose bit width forces oversized unpacking
Deliver the file to a DuckDB-based application (e.g., read_parquet / COPY FROM)
During RLE/bit-packed decoding,
BitUnpackAlignedInternal
memcpy overflows the 128-byte
aligned_data
stack buffer by 252 bytes
[No reproducer o... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-QRPT15J8.
Reference:
ANT-2026-QRPT15J8
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-QRPT15J8: Stack-buffer-overflow in sanitizer_common_interceptors.inc:827
DuckDB's parquet extension decodes dictionary-encoded columns using a fixed 128-byte stack buffer (
aligned_data
) in
RleBpDecoder::GetBatch<unsigned int>
. A malformed Parquet file can specify a bit width that causes
BitUnpackAlignedInte... | Trail of Bits | true positive | # ANT-2026-QRPT15J8: ANT-2026-QRPT15J8 · duckdb
**Project:** duckdb | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** GHSA-vc62-m939-7mqr
## Vulnerability Summary
DuckDB's parquet extension decodes dic... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-QRPT15J8 · duckdb</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="... | fixed | true | 2026-03-24 | 2026-04-29 | 594f0acb52de146e309c8d00e35a7d44242995d1b10dad1dd6295d7227f6773d7ac5cd12137562aac5a8bcd9c8a8b20e4cb531acf33f77a4ea416a3376b46ac6 | 642 | 0 | 645 | 3,797 | 645 | |||
ANT-2026-Z477W54M | https://red.anthropic.com/2026/cvd/findings/ANT-2026-Z477W54M | cisco-talos/clamav | integer-underflow | high | high | high | high | Claude Mythos Preview | [
"CVE-2026-20214"
] | [
"GHSA-86w7-h9x4-hpxv"
] | libclamav/pe.c:cli_scanpe (FSG v1.31 unpacker handler, ~line 3719; loop bound | static analysis — not yet dynamically reproduced | ANT-2026-Z477W54M: Unsigned integer underflow in FSG unpacker section loop | An unsigned integer underflow occurs in the section-processing loop of the FSG unpacker. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-Z477W54M.
Reference:
ANT-2026-Z477W54M
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-Z477W54M: Unsigned integer underflow in FSG unpacker section loop
An unsigned integer underflow occurs in the section-processing loop of the FSG unpacker.
Target
Project:
cisco-talos/clamav
Location:
libclamav/pe.c:cli_scanpe (FSG v1.31 unpacker handler, ~line 3719; loop bound
t <= (uint32_t)sectcnt - 1
underf... | Trail of Bits | true positive | # ANT-2026-Z477W54M: ANT-2026-Z477W54M · cisco-talos/clamav
**Project:** cisco-talos/clamav | **Bug Class:** integer-underflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-20214, GHSA-86w7-h9x4-hpxv
## Vulnerability Summary
An ... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-Z477W54M · cisco-talos/clamav</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_them... | fixed | true | 2026-03-29 | 2026-04-09 | b8d4f660d79e46e525130fe4e10aa0281ee8404f73ca7f2fab23c7a483daff0d3a43e95658d1dcff1c1fc185fa140cf659fca6b1aa652064829afd28bbbd8f35 | 252 | 0 | 258 | 2,621 | 258 | |||
ANT-2026-PVN0XWJM | https://red.anthropic.com/2026/cvd/findings/ANT-2026-PVN0XWJM | ffmpeg/ffmpeg | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | copy_block.h:51 | ANT-2026-PVN0XWJM: Heap-buffer-overflow in copy_block.h:51 | FFmpeg's AGM (Amuse Graphics Movie) decoder performs an out-of-bounds heap read while decoding inter-frame data. Inside decode_inter_plane, a source pointer passed to copy_block8 lands 32 bytes before the start of an allocated frame buffer, resulting in an 8-byte read from heap redzone memory. An attacker supplying a c... | ASAN: "READ of size 8 at 0x7a507cbe00f0 ... located 32 bytes before 128-byte region". The source pointer computed in decode_inter_plane (agm.c:453) for the block copy is not clamped to the bounds of the reference frame buffer allocated via ff_get_buffer, so attacker-controlled offsets in the bitstream can drive the rea... | Construct an AGM bitstream whose inter-frame coding parameters produce a negative/out-of-range source offset in decode_inter_plane
Deliver the file to the victim (upload, attachment, stream, thumbnailer, etc.)
Decoder calls copy_block8 with a source pointer pointing before the reference frame buffer
[No reproducer or ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-PVN0XWJM.
Reference:
ANT-2026-PVN0XWJM
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-PVN0XWJM: Heap-buffer-overflow in copy_block.h:51
FFmpeg's AGM (Amuse Graphics Movie) decoder performs an out-of-bounds heap read while decoding inter-frame data. Inside decode_inter_plane, a source pointer passed to copy_block8 lands 32 bytes before the start of an allocated frame buffer, resulting in an 8-by... | Ada Logics | true positive | diff --git a/libavcodec/agm.c b/libavcodec/agm.c
index c13b4d963e68d..5d27d17274c09 100644
--- a/libavcodec/agm.c
+++ b/libavcodec/agm.c
@@ -409,12 +409,14 @@ static int decode_inter_plane(AGMContext *s, GetBitContext *gb, int size,
int map = s->map[x];
if (orig_mv_x >= -32) {
- if (y * 8 + mv_y < 0 ... | # ANT-2026-PVN0XWJM: ANT-2026-PVN0XWJM · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
FFmpeg's AGM (Amuse Graphics Movie) decoder performs an out-of-bounds heap... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-PVN0XWJM · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-24 | 2026-05-28 | 3eec53da3e43eec5aff2839722a3f771bd90657c607d1e9d00fe7d83125512881e9024d6ae9d5d2f9f0252f02648977d5e79af4bd2254a1604bc999d39855d39 | 905 | 698 | 1,608 | 5,214 | 2,306 | ||
ANT-2026-PVD37V09 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-PVD37V09 | torvalds/linux | use-after-free | high | high | - | - | [] | [] | io_wq_remove_pending() in io_uring/io-wq.c | ANT-2026-PVD37V09: LPE via io_uring io-wq worker pool | In io_uring's io-wq worker pool, cancelling a hashed bucket-0 work item whose list predecessor is non-hashed causes io_wq_remove_pending() to install the non-hashed io_kiocb as wq->hash_tail[0], since io_get_work_hash() returns 0 for all non-hashed work. The non-hashed request completes and is freed via req_cachep whil... | The inner check
if (prev_work && io_get_work_hash(prev_work) == hash)
omits
io_wq_is_hashed(prev_work)
; because io_get_work_hash() is just
flags >> 24
and returns 0 for every non-hashed item, a non-hashed predecessor spuriously matches bucket 0 and is stored in wq->hash_tail[0]. That pointer is never cleared on the no... | Pin task and limit io-wq to one bound worker; find a tmpfs file that hashes to bucket 0.
Submit a 4-SQE batch: B=FSYNC on a dirtied ext4 file (blocks the worker), N=FSYNC (non-hashed), H=WRITEV on the bucket-0 file (hashed), C=ASYNC_CANCEL(H).
CANCEL runs inline while the pending list is [N, H]; io_wq_remove_pending(H,... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-PVD37V09.
Reference:
ANT-2026-PVD37V09
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-PVD37V09: LPE via io_uring io-wq worker pool
In io_uring's io-wq worker pool, cancelling a hashed bucket-0 work item whose list predecessor is non-hashed causes io_wq_remove_pending() to install the non-hashed io_kiocb as wq->hash_tail[0], since io_get_work_hash() returns 0 for all non-hashed work. The non-has... | # ANT-2026-PVD37V09: ANT-2026-PVD37V09 · torvalds/linux
**Project:** torvalds/linux | **Bug Class:** use-after-free
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
In io_uring's io-wq worker pool, cancelling a hashed bucket-0 work item whose list predecessor is n... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-PVD37V09 · torvalds/linux</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");... | fixed | true | 2026-05-13 | 2026-05-13 | a7e9f89b53dc32206b0904cae2476224b0524baf01050ea0f605e33aba927598c5b282ae8230e87f3e3b389a3479d05d73acf33cf59d6e504ff745af970a36af | 1,064 | 0 | 922 | 30,077 | 922 | ||||||
ANT-2026-B324R0JY | https://red.anthropic.com/2026/cvd/findings/ANT-2026-B324R0JY | syncthing/syncthing | auth-bypass | high | critical | high | - | Claude Mythos Preview | [] | [] | cmd/stdiscosrv/apisrv.go:326 | ANT-2026-B324R0JY: stdiscosrv trusts proxy header for client identity in direct-TLS mode → DeviceID poisoning | In stdiscosrv's announcement endpoint (POST /), when the connection lacks a TLS client certificate the handler falls back to reading the client DeviceID from a proxy header that the remote client fully controls. That spoofed DeviceID and the announced addresses are passed to db.merge(&deviceID, dbAddrs, seen) at apisrv... | stdiscosrv POST / handler accepts an attacker-supplied proxy header as the client DeviceID when no TLS client certificate is presented, and writes the announced addresses to db.merge(&deviceID, dbAddrs, seen) at apisrv.go:326. On the default direct-TLS configuration, any internet client can register/overwrite addresses... | Connect to stdiscosrv's POST / endpoint without presenting a TLS client certificate.
Set the proxy header to the target victim's DeviceID.
Submit an announcement body containing attacker-controlled addresses.
Handler accepts the header as the DeviceID and calls db.merge(&deviceID, dbAddrs, seen) at apisrv.go:326, persi... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-B324R0JY.
Reference:
ANT-2026-B324R0JY
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-B324R0JY: stdiscosrv trusts proxy header for client identity in direct-TLS mode → DeviceID poisoning
In stdiscosrv's announcement endpoint (POST /), when the connection lacks a TLS client certificate the handler falls back to reading the client DeviceID from a proxy header that the remote client fully controls... | Doyensec | true positive | diff --git a/cmd/stdiscosrv/apisrv.go b/cmd/stdiscosrv/apisrv.go
index 3a94dd3e91d..7c486669cc5 100644
--- a/cmd/stdiscosrv/apisrv.go
+++ b/cmd/stdiscosrv/apisrv.go
@@ -254,7 +254,7 @@ func (s *apiSrv) handleGET(w http.ResponseWriter, req *http.Request) {
func (s *apiSrv) handlePOST(remoteAddr *net.TCPAddr, w http.Resp... | # ANT-2026-B324R0JY: ANT-2026-B324R0JY · syncthing/syncthing
**Project:** syncthing/syncthing | **Bug Class:** auth-bypass
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
## Vulnerability Summary
In stdiscosrv's announcement endpoint (POST /), when the connection... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-B324R0JY · syncthing/syncthing</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_the... | fixed | true | 2026-04-10 | 2026-05-07 | de0da45ed86fd10d44e03057e27a006b20bacdee8624c5a009c87453ce6834b64226c35871698a581e96030723b5c504051c7096ae0808b07a98adb40b60e711 | 506 | 322 | 784 | 10,441 | 1,106 | ||
ANT-2026-HN9XZXJ9 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-HN9XZXJ9 | freerdp/freerdp | heap-buffer-overflow | critical | critical | critical | - | Claude Mythos Preview | [
"CVE-2026-45700"
] | [
"GHSA-mpxh-8fq3-x8mh",
"GHSA-mvpx-xj7r-3p3r",
"GHSA-p6r2-4hgm-m6ff"
] | planar.c:472 | ANT-2026-HN9XZXJ9: heap-buffer-overflow write (attacker-controlled offset, partially-controlled data via rle delta values; up to ~15kb overwrite past ptempdata with these parameters, further with larger nxdst) in planar.c:472 | In FreeRDP's planar bitmap codec (libfreerdp/codec/planar.c), the X-axis bounds check at line 968 validates nXDst against the caller's destination stride (nDstStep) rather than the internal temp buffer stride (nTempStep) when the temp-buffer path is active. A malicious RDP server can send RDPGFX planar data with a larg... | ASAN: heap-buffer-overflow WRITE of size 1 at 0x52b0000062e2, 170 bytes past the end of a 24632-byte heap region. The bounds check at planar.c:968 compares against nDstStep (28032) instead of nTempStep (256), so when the temp-buffer code path is used the check does not actually constrain writes to pTempData. Large atta... | Server negotiates RDPGFX and sends planar-encoded bitmap data
Planar context is initialized small (e.g. 64x64), allocating a ~24KB pTempData buffer with nTempStep=256
Server supplies a large nXDst (e.g. 6000) alongside a large caller nDstStep (e.g. 28032)
Bounds check at planar.c:968 compares 4*nXDst+16 against nDstSte... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-HN9XZXJ9.
Reference:
ANT-2026-HN9XZXJ9
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-HN9XZXJ9: heap-buffer-overflow write (attacker-controlled offset, partially-controlled data via rle delta values; up to ~15kb overwrite past ptempdata with these parameters, further with larger nxdst) in planar.c:472
In FreeRDP's planar bitmap codec (libfreerdp/codec/planar.c), the X-axis bounds check at line ... | Trail of Bits | true positive | # ANT-2026-HN9XZXJ9: ANT-2026-HN9XZXJ9 · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-45700, GHSA-mpxh-8fq3-x8mh, GHSA-mvpx-xj7r-3p3r, GHSA-p6r... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-HN9XZXJ9 · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-03-24 | 2026-04-30 | 29af186542c112b5343a65f02c7172778fb1557257c7f93bae53f138452377c80bff2e5179a0fdc789f462a28ae262e222512a5257acc425172a7f894d2c5468 | 995 | 0 | 1,019 | 4,932 | 1,019 | |||
ANT-2026-GTGXBRXN | https://red.anthropic.com/2026/cvd/findings/ANT-2026-GTGXBRXN | rabbitmq-c | integer-underflow | medium | medium | medium | - | Claude Mythos Preview | [
"CVE-2026-44235"
] | [
"GHSA-9mmv-r8g3-qp46"
] | static analysis — not yet dynamically reproduced | ANT-2026-GTGXBRXN: size_t underflow in AMQP frame length computation leading to massive out-of-bounds read | A size_t underflow when computing the length of an AMQP frame results in a massive out-of-bounds read. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-GTGXBRXN.
Reference:
ANT-2026-GTGXBRXN
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-GTGXBRXN: size_t underflow in AMQP frame length computation leading to massive out-of-bounds read
A size_t underflow when computing the length of an AMQP frame results in a massive out-of-bounds read.
Target
Project:
rabbitmq-c
Discovery:
static analysis — not yet dynamically reproduced
Reproduction
This findi... | Trail of Bits | true positive | # ANT-2026-GTGXBRXN: ANT-2026-GTGXBRXN · rabbitmq-c
**Project:** rabbitmq-c | **Bug Class:** integer-underflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-44235, GHSA-9mmv-r8g3-qp46
## Vulnerability Summary
A size_t underflow w... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-GTGXBRXN · rabbitmq-c</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t... | fixed | true | 2026-03-29 | 2026-04-09 | 3033221594ae12c1cf323741eecb09d2bcd009e6ee6b2b7e464106d5bd6e6e7766637589d331edbd33be4041134f0722bc6d23d07a39887eed90541a0c797f77 | 208 | 0 | 219 | 4,370 | 219 | ||||
ANT-2026-0BETG8WD | https://red.anthropic.com/2026/cvd/findings/ANT-2026-0BETG8WD | poppler | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | SplashOutputDev.cc:2688, unsetSoftMaskFromImageMask() | ANT-2026-0BETG8WD: Heap-buffer-overflow in SplashOutputDev::unsetSoftMaskFromImageMask at SplashOutputDev.cc:2688 via crafted PDF tiling pattern with image mask | In poppler's Splash rendering pipeline, SplashOutputDev::tilingPatternFill() allocates a bitmap sized to the pattern tile (line 4361), but setSoftMaskFromImageMask() sizes its softmask to the main page-level bitmap (line 2662). During teardown, unsetSoftMaskFromImageMask() copies the softmask into the tile bitmap's alp... | The tile bitmap's alpha buffer is sized to tile dimensions while the copy loop in unsetSoftMaskFromImageMask() iterates over the (larger) softmask dimensions derived from the main rendering surface — a classic size-source mismatch. ASAN reports a WRITE "0 bytes after 1-byte region", confirming that even a 1-byte tile a... | Craft a PDF containing a tiling pattern with an embedded image mask, choosing page dimensions larger than tile dimensions to control overflow length
Deliver the PDF to the victim via email, download, upload-for-processing, etc.
Victim opens or processes the PDF in a poppler-based application using the Splash backend
ti... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-0BETG8WD.
Reference:
ANT-2026-0BETG8WD
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-0BETG8WD: Heap-buffer-overflow in SplashOutputDev::unsetSoftMaskFromImageMask at SplashOutputDev.cc:2688 via crafted PDF tiling pattern with image mask
In poppler's Splash rendering pipeline, SplashOutputDev::tilingPatternFill() allocates a bitmap sized to the pattern tile (line 4361), but setSoftMaskFromImage... | Ada Logics | true positive | # ANT-2026-0BETG8WD: ANT-2026-0BETG8WD · poppler
**Project:** poppler | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
In poppler's Splash rendering pipeline, SplashOutputDev::tilingPatternFill() allocates... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-0BETG8WD · poppler</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t===... | fixed | true | 2026-03-20 | 2026-03-24 | 396d3abb80ceb62364bcf81905d621fb58a2551cd2741cf303804ff0eb2abce5be0f94658266721a4be6b2de84a8652566ef6fc1cc2902c607532e7d94e76e54 | 1,208 | 0 | 1,179 | 4,990 | 1,179 | |||
ANT-2026-S1E4Y69J | https://red.anthropic.com/2026/cvd/findings/ANT-2026-S1E4Y69J | freerdp/freerdp | oob-write | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-73242"
] | [
"GHSA-vv64-95pc-vj9v"
] | winpr/libwinpr/sspi/Kerberos/kerberos.c:2242 | static analysis — not yet dynamically reproduced | ANT-2026-S1E4Y69J: Kerberos wrap-token EC field drives out-of-bounds decrypt | kerberos_DecryptMessage() reads the 16-bit EC and RRC fields from the peer-supplied GSS Wrap token header and validates RRC and the signature buffer length but never bounds EC. It then computes iov[0].data.data = header + 16 + rrc + ec and iov[2].data.data = header + 16 + ec and passes them to krb5_k_decrypt_iov(), whi... | The root cause is a missing bounds check on the attacker-controlled 16-bit EC field read at kerberos.c:2205: the surrounding validation at kerberos.c:2240/2242 pins rrc and sig_buffer->cbBuffer to enctype-derived constants but never constrains ec before it is added into the IOV base-pointer arithmetic at kerberos.c:224... | Establish an NLA/Kerberos session with the victim FreeRDP endpoint and complete the Kerberos context.
Craft a GSS Wrap token of exactly cbSecurityTrailer bytes (e.g. 60 for AES256-CTS-HMAC-SHA1-96) with rrc set to the expected value and EC=0xFFFF.
Send it as the CredSSP pubKeyAuth (or authInfo) blob in a TSRequest.
Vic... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-S1E4Y69J.
Reference:
ANT-2026-S1E4Y69J
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-S1E4Y69J: Kerberos wrap-token EC field drives out-of-bounds decrypt
kerberos_DecryptMessage() reads the 16-bit EC and RRC fields from the peer-supplied GSS Wrap token header and validates RRC and the signature buffer length but never bounds EC. It then computes iov[0].data.data = header + 16 + rrc + ec and iov... | Ada Logics | true positive | diff --git a/winpr/libwinpr/sspi/Kerberos/kerberos.c b/winpr/libwinpr/sspi/Kerberos/kerberos.c
index 9661f71a9515..03b208fbdfdc 100644
--- a/winpr/libwinpr/sspi/Kerberos/kerberos.c
+++ b/winpr/libwinpr/sspi/Kerberos/kerberos.c
@@ -2242,21 +2242,6 @@ static SECURITY_STATUS SEC_ENTRY kerberos_DecryptMessage(WINPR_ATTR_UN... | # ANT-2026-S1E4Y69J: ANT-2026-S1E4Y69J · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** oob-write
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-73242, GHSA-vv64-95pc-vj9v
## Vulnerability Summary
kerberos_DecryptMess... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-S1E4Y69J · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-04-02 | 2026-07-22 | e6007fd1601b40d0fb7b19dbb20bac927e968325cd83c0c1b5abf404b197925dd43d2343500ef7d1632611d5cce038ccc4ddf9e8f7b823ed5f4712ee94feeab3 | 701 | 1,245 | 1,937 | 12,832 | 3,182 | |
ANT-2026-REDYDMAE | https://red.anthropic.com/2026/cvd/findings/ANT-2026-REDYDMAE | supabase/supabase | xss | medium | medium | - | - | Claude Mythos Preview | [] | [] | apps/studio/components/interfaces/Integrations/Vercel/VercelIntegration.utils.ts:3 | static analysis — not yet dynamically reproduced | ANT-2026-REDYDMAE: DOM-based XSS via javascript: scheme in URL hostname check | The isVercelUrl() helper checks only that new URL(url).hostname === 'vercel.com' and never inspects the protocol. Because non-special schemes like javascript: parse an authority after //, a URL such as javascript://vercel.com/%0a yields hostname 'vercel.com' and passes validation. The attacker-controllednextquery param... | Root cause is a protocol-blind URL allowlist: validating only
new URL(url).hostname
is insufficient because the WHATWG URL parser will populate hostname for non-special schemes when the input contains
//authority
. Thus
new URL('javascript://vercel.com/%0aalert(1)').hostname === 'vercel.com'
is true, the check passes, ... | Craft a URL to /dashboard/integrations/vercel//marketplace/choose-project with next=javascript%3A%2F%2Fvercel.com%2F%250a
Deliver the link to an authenticated Studio user
Victim loads the page; isVercelUrl() approves the next value because hostname === 'vercel.com'
Victim clicks 'Skip', triggering window.location.href ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-REDYDMAE.
Reference:
ANT-2026-REDYDMAE
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-REDYDMAE: DOM-based XSS via javascript: scheme in URL hostname check
The isVercelUrl() helper checks only that new URL(url).hostname === 'vercel.com' and never inspects the protocol. Because non-special schemes like javascript: parse an authority after //, a URL such as javascript://vercel.com/%0a yields hostn... | diff --git a/apps/studio/components/interfaces/Integrations/Vercel/VercelIntegration.utils.ts b/apps/studio/components/interfaces/Integrations/Vercel/VercelIntegration.utils.ts
index cf4a7f0c93bf5..3c55db6f9e6aa 100644
--- a/apps/studio/components/interfaces/Integrations/Vercel/VercelIntegration.utils.ts
+++ b/apps/stu... | # ANT-2026-REDYDMAE: ANT-2026-REDYDMAE · supabase/supabase
**Project:** supabase/supabase | **Bug Class:** xss
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
The isVercelUrl() helper checks only that new URL(url).hostname === 'vercel.com' ... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-REDYDMAE · supabase/supabase</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-05-10 | 2026-05-18 | eee969c5af0ed7459b1785ef07a4d522782ddf10821f03a6515b47586c9d3369bb3fa34dbdb84a165ff71a303e7a47b22386c6369e6e72b990cb54174b4672c9 | 624 | 191 | 748 | 4,777 | 939 | |||
ANT-2026-A5580GNM | https://red.anthropic.com/2026/cvd/findings/ANT-2026-A5580GNM | xdao | logic-error | high | high | high | [] | [] | # ANT-2026-A5580GNM: ANT-2026-A5580GNM · xdao
**Project:** xdao | **Bug Class:** logic-error
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-A5580GNM · withdrawn</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t=... | withdrawn | true | 2026-04-10 | 2026-05-08 | 144939c62042bb85bb8a2c9719f9a483e7e3d4b0afbc3f83cdbd2522925c39671aef37b812c90caa38b8d8f0d76d4db0bfd2f8b99e752a831e632fa20089bc5d | 0 | 0 | 56 | 842 | 56 | ||||||||||||||
ANT-2026-D7FC4YDQ | https://red.anthropic.com/2026/cvd/findings/ANT-2026-D7FC4YDQ | rabbitmq-c | heap-buffer-overflow | high | critical | high | - | Claude Opus 4.6 | [
"CVE-2026-44236"
] | [
"GHSA-jh48-qjf5-fx5v"
] | librabbitmq/amqp_connection.c:amqp_tune_connection (missing minimum frame_max check; overflow write occurs in amqp_frame_to_bytes) | ANT-2026-D7FC4YDQ: Heap-buffer-overflow in rabbitmq-c | libFuzzer replayed a single PoC input against the fuzz_server target and the process terminated with EXIT_CODE:1. No AddressSanitizer, UBSan, or other crash diagnostics were printed, and no stack frames or source locations are available, so the crash type, faulting function, and access shape cannot be determined from t... | The fuzz_server harness exited with code 1 when replaying the provided PoC input; no sanitizer report or stack trace was emitted.
Crash trace:
INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 2008757616
INFO: Loaded 1 modules (2985 inline 8-bit counters): 2985 [0x5bd5cae62d00, 0x5bd5cae638a9),
IN... | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-D7FC4YDQ.
Reference:
ANT-2026-D7FC4YDQ
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-D7FC4YDQ: Heap-buffer-overflow in rabbitmq-c
libFuzzer replayed a single PoC input against the fuzz_server target and the process terminated with EXIT_CODE:1. No AddressSanitizer, UBSan, or other crash diagnostics were printed, and no stack frames or source locations are available, so the crash type, faulting ... | Trail of Bits | true positive | # ANT-2026-D7FC4YDQ: ANT-2026-D7FC4YDQ · rabbitmq-c
**Project:** rabbitmq-c | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Opus 4.6 | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-44236, GHSA-jh48-qjf5-fx5v
## Vulnerability Summary
libFuzzer replayed a ... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-D7FC4YDQ · rabbitmq-c</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t... | fixed | true | 2026-03-24 | 2026-04-29 | a8fc7febc53a5a1d71969c3c56575afd86f1df219e4aa2419b9304057bc1018433ef6f931061fce3ac051fd2e2c8a7dda48ac82900155f85aa45ea0d3d352176 | 423 | 0 | 448 | 5,044 | 448 | |||
ANT-2026-VVPEMVDE | https://red.anthropic.com/2026/cvd/findings/ANT-2026-VVPEMVDE | cisco-talos/clamav | integer-overflow | high | high | high | high | Claude Mythos Preview | [
"CVE-2026-20213"
] | [
"GHSA-rjvx-x4g3-vr6w"
] | libclamav/rebuildpe.c:cli_rebuildpe_align (lines ~140-144) | static analysis — not yet dynamically reproduced | ANT-2026-VVPEMVDE: Integer overflow in PE rebuild section size summation in Aspack unpacker | An integer overflow occurs when summing section sizes during PE rebuild in the Aspack unpacker. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-VVPEMVDE.
Reference:
ANT-2026-VVPEMVDE
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-VVPEMVDE: Integer overflow in PE rebuild section size summation in Aspack unpacker
An integer overflow occurs when summing section sizes during PE rebuild in the Aspack unpacker.
Target
Project:
cisco-talos/clamav
Location:
libclamav/rebuildpe.c:cli_rebuildpe_align (lines ~140-144)
Discovery:
static analysis —... | Trail of Bits | true positive | # ANT-2026-VVPEMVDE: ANT-2026-VVPEMVDE · cisco-talos/clamav
**Project:** cisco-talos/clamav | **Bug Class:** integer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-20213, GHSA-rjvx-x4g3-vr6w
## Vulnerability Summary
An i... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-VVPEMVDE · cisco-talos/clamav</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_them... | fixed | true | 2026-03-29 | 2026-04-09 | 89125e041730615a2fff06ae6e0eff4b40b6408d111f17abde7f218c7f212abf26dd07500ce51127eac4875d6d9bbc7c8a90e37310611e2c394c3aea90d93723 | 224 | 0 | 249 | 2,595 | 249 | |||
ANT-2026-4YJK1P9J | https://red.anthropic.com/2026/cvd/findings/ANT-2026-4YJK1P9J | ffmpeg/ffmpeg | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | dhav.c:286 | ANT-2026-4YJK1P9J: Heap-buffer-overflow in dhav.c:286 | While opening a DHAV container, dhav_read_header() calls get_duration(), which allocates a 1 MiB scan buffer (dhav.c:264) and then reads a 4-byte value at an offset that lands 16 bytes past the end of that buffer (dhav.c:286). The offset appears to be derived from attacker-controlled file contents and is not bounds-che... | ASAN: "READ of size 4 at 0x714313098810 ... 16 bytes after 1048576-byte region". get_duration() allocates a fixed 1 MiB buffer via av_malloc and later dereferences a 4-byte word at an index computed from file data without verifying it stays within the buffer, resulting in a heap OOB read just past the allocation.
Cras... | Craft a DHAV file whose trailer/size fields cause get_duration() to compute an index beyond the 1 MiB scan buffer
Deliver the file to the target (upload, attachment, stream)
Target calls avformat_open_input(), which invokes dhav_read_header() -> get_duration()
4-byte read occurs 16 bytes past the heap allocation
[No r... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-4YJK1P9J.
Reference:
ANT-2026-4YJK1P9J
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-4YJK1P9J: Heap-buffer-overflow in dhav.c:286
While opening a DHAV container, dhav_read_header() calls get_duration(), which allocates a 1 MiB scan buffer (dhav.c:264) and then reads a 4-byte value at an offset that lands 16 bytes past the end of that buffer (dhav.c:286). The offset appears to be derived from a... | Ada Logics | true positive | diff --git a/libavformat/dhav.c b/libavformat/dhav.c
index 598780e8b86f1..82e2783461586 100644
--- a/libavformat/dhav.c
+++ b/libavformat/dhav.c
@@ -280,7 +280,7 @@ static int64_t get_duration(AVFormatContext *s)
}
}
- if (pos < buffer_pos || pos + 20 > buffer_pos + buffer_size)
+ if (pos < buffer_pos || pos - bu... | # ANT-2026-4YJK1P9J: ANT-2026-4YJK1P9J · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
While opening a DHAV container, dhav_read_header() calls get_duration(), w... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-4YJK1P9J · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-24 | 2026-05-28 | 338a843160c0a0f5b9211ab7c755878905005b8f97e1eed8b5fa671e4b27519e850b2dfd7e2f409de7cf6f65d018a272578d0b7029093170b31c278e30a01595 | 1,007 | 147 | 1,157 | 4,607 | 1,304 | ||
ANT-2026-S8PHCV74 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-S8PHCV74 | cloudfoundry/uaa | auth-bypass | medium | high | medium | - | Claude Mythos Preview | [] | [] | server/src/main/java/org/cloudfoundry/identity/uaa/zone/DenyAccessToUaaAdvice.java:15 | static analysis — not yet dynamically reproduced | ANT-2026-S8PHCV74: DenyAccessToUaaAdvice case-sensitive check bypassed on MySQL: zones.write overwrites system zone | DenyAccessToUaaAdvice.checkIdentityZoneId() and GeneralIdentityZoneValidator block modification of the system zone by comparing the incoming ID to the literal string "uaa" with case-sensitive String.equals(). On MySQL with the default utf8mb4_0900_ai_ci collation, a WHERE id='UAA' query still resolves to the system-zon... | The guard uses IdentityZone.getUaaZoneId().equals(identityZoneId), a case-sensitive comparison, so "UAA" is not blocked. The persistence layer on MySQL is case-insensitive by default, so the update lands on the real 'uaa' row. The AOP wiring at IdentityZoneAopConfig.java:43-46 checks both the path param and body id, so... | Obtain a token for a client with authorities zones.read, zones.write, uaa.resource, scim.zones (no uaa.admin).
Send PUT /identity-zones/UAA with body id "UAA" and a config.tokenPolicy containing an attacker-controlled activeKeyId and RSA signing key; receive HTTP 200.
Confirm via GET /token_keys that the attacker key i... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-S8PHCV74.
Reference:
ANT-2026-S8PHCV74
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-S8PHCV74: DenyAccessToUaaAdvice case-sensitive check bypassed on MySQL: zones.write overwrites system zone
DenyAccessToUaaAdvice.checkIdentityZoneId() and GeneralIdentityZoneValidator block modification of the system zone by comparing the incoming ID to the literal string "uaa" with case-sensitive String.equal... | true positive | diff --git a/server/src/main/java/org/cloudfoundry/identity/uaa/zone/DenyAccessToUaaAdvice.java b/server/src/main/java/org/cloudfoundry/identity/uaa/zone/DenyAccessToUaaAdvice.java
index a24f11ef1df..68b038b48a8 100644
--- a/server/src/main/java/org/cloudfoundry/identity/uaa/zone/DenyAccessToUaaAdvice.java
+++ b/server... | # ANT-2026-S8PHCV74: ANT-2026-S8PHCV74 · cloudfoundry/uaa
**Project:** cloudfoundry/uaa | **Bug Class:** auth-bypass
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
DenyAccessToUaaAdvice.checkIdentityZoneId() and GeneralIdentityZoneValidator ... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-S8PHCV74 · cloudfoundry/uaa</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme"... | fixed | true | 2026-04-09 | 2026-05-08 | 52b0e75e358db4af90813b97fd908de26fdf9b48c4dc4e36e22b2a82ec68fadae72dc72982cb8b3580ccdf5a692ce110ea8f4bfc308964f0394f0e983f0d77e9 | 576 | 536 | 1,111 | 5,193 | 1,647 | ||
ANT-2026-CN7KX43N | https://red.anthropic.com/2026/cvd/findings/ANT-2026-CN7KX43N | nomad | path-traversal | critical | critical | critical | high | [
"CVE-2026-7474"
] | [] | # ANT-2026-CN7KX43N: ANT-2026-CN7KX43N · nomad
**Project:** nomad | **Bug Class:** path-traversal
**Attributed Model:** | **Claude Severity:** critical | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-7474 | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-CN7KX43N · withdrawn</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t=... | withdrawn | true | 2026-04-11 | 2026-05-07 | f3a842104e12d90649407d9cfb8f18a25de1dbb9f0b7139ce9f9beb561c08d4a2e4b0f109c130805f2421face4266272f28650823d154d76e40d22bf7f3b5c4f | 0 | 0 | 73 | 991 | 73 | |||||||||||||
ANT-2026-GSDN3H7W | https://red.anthropic.com/2026/cvd/findings/ANT-2026-GSDN3H7W | opensc | stack-buffer-overflow | low | low | low | low | Claude Mythos Preview | [
"CVE-2026-40528"
] | [] | do_key_value() | static analysis — not yet dynamically reproduced | ANT-2026-GSDN3H7W: Stack buffer overflow in do_key_value profile parsing via unbounded memcpy into 32-byte buffer | An unbounded memcpy in do_key_value copies profile data into a fixed 32-byte stack buffer, overflowing it. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-GSDN3H7W.
Reference:
ANT-2026-GSDN3H7W
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-GSDN3H7W: Stack buffer overflow in do_key_value profile parsing via unbounded memcpy into 32-byte buffer
An unbounded memcpy in do_key_value copies profile data into a fixed 32-byte stack buffer, overflowing it.
Target
Project:
opensc
Location:
do_key_value()
Discovery:
static analysis — not yet dynamically re... | Trail of Bits | true positive | # ANT-2026-GSDN3H7W: ANT-2026-GSDN3H7W · opensc
**Project:** opensc | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** low
**Security Advisories:** CVE-2026-40528
## Vulnerability Summary
An unbounded memcpy in do_key_value copies pro... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-GSDN3H7W · opensc</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="... | fixed | true | 2026-03-29 | 2026-04-09 | ce928e32f2d40c5afc3911f86cbf75774a72defba7331a4233ba68f846447e71482974fd708e1b7137ccf7edcae245f89826cfeb3b038c4fa962703b3640efdb | 215 | 0 | 216 | 2,473 | 216 | |||
ANT-2026-HY56VRSB | https://red.anthropic.com/2026/cvd/findings/ANT-2026-HY56VRSB | nginx/nginx | heap-buffer-overflow | high | high | critical | high | Claude Mythos Preview | [
"CVE-2026-27654"
] | [] | src/http/modules/ngx_http_dav_module.c:703 | static analysis — not yet dynamically reproduced | ANT-2026-HY56VRSB: Heap buffer overflow in ngx_http_dav_copy_move_handler at ngx_http_dav_module.c:703 via short Destination header with alias directive | In ngx_http_dav_copy_move_handler(), processing a COPY or MOVE request in a location using the alias directive temporarily replaces r->uri with the attacker-controlled Destination header URI and calls ngx_http_map_uri_to_path() without re-matching location blocks. If the Destination URI is shorter than clcf->alias, the... | The root cause is that the handler swaps r->uri with the Destination URI (line 701) and immediately calls ngx_http_map_uri_to_path() (line 703) without validating that the new URI length is >= clcf->alias. In ngx_http_map_uri_to_path() at ngx_http_core_module.c:1943, path->len = clcf->root.len + reserved + r->uri.len -... | Identify a target location combining alias and dav_methods COPY/MOVE (e.g., location /dav/ { alias /var/www/; dav_methods COPY; })
Send: COPY /dav/file.txt HTTP/1.1 with header Destination: /x (any path shorter than the 5-character alias '/dav/')
Handler swaps r->uri to '/x' (len=2), calls ngx_http_map_uri_to_path(); p... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-HY56VRSB.
Reference:
ANT-2026-HY56VRSB
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-HY56VRSB: Heap buffer overflow in ngx_http_dav_copy_move_handler at ngx_http_dav_module.c:703 via short Destination header with alias directive
In ngx_http_dav_copy_move_handler(), processing a COPY or MOVE request in a location using the alias directive temporarily replaces r->uri with the attacker-controlled... | Calif | true positive | # ANT-2026-HY56VRSB: ANT-2026-HY56VRSB · nginx/nginx
**Project:** nginx/nginx | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-27654
## Vulnerability Summary
In ngx_http_dav_copy_move_handler()... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-HY56VRSB · nginx/nginx</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(... | fixed | true | 2026-03-20 | 2026-03-20 | 64bfee709f646fc04ffed676034930182615fbe340bb4bbeecf2bdd53bc3fafc738cc51c1b25e2601cd2de21f1d303a90581e3201aaf0062593b5a4179344db5 | 648 | 0 | 639 | 4,707 | 639 | ||
ANT-2026-MHV0A2SD | https://red.anthropic.com/2026/cvd/findings/ANT-2026-MHV0A2SD | freetype/freetype | heap-buffer-overflow | medium | medium | medium | - | Claude Mythos Preview | [] | [] | BuildCharArray (Type 1 Multi-Master) | static analysis — not yet dynamically reproduced | ANT-2026-MHV0A2SD: Heap buffer overflow in Type 1 Multi-Master BuildCharArray via struct field corruption bypassing bounds check | Heap buffer overflow in Type 1 Multi-Master BuildCharArray where struct field corruption allows bypassing a bounds check. | A struct field can be corrupted such that the bounds check guarding writes into the BuildCharArray is bypassed, allowing out-of-bounds heap writes during Type 1 Multi-Master font charstring interpretation. | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-MHV0A2SD.
Reference:
ANT-2026-MHV0A2SD
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-MHV0A2SD: Heap buffer overflow in Type 1 Multi-Master BuildCharArray via struct field corruption bypassing bounds check
Heap buffer overflow in Type 1 Multi-Master BuildCharArray where struct field corruption allows bypassing a bounds check.
Target
Project:
freetype/freetype
Location:
BuildCharArray (Type 1 Mu... | Trail of Bits | true positive | # ANT-2026-MHV0A2SD: ANT-2026-MHV0A2SD · freetype/freetype
**Project:** freetype/freetype | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
Heap buffer overflow in Type 1 Multi-Master BuildCharArray where... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-MHV0A2SD · freetype/freetype</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-03-29 | 2026-04-09 | 9d79a6e25b54371b04cb288170cb834ebc4e1a8a252c47277ce0386742a21844e7b508515d9365e459ac69b784159f4a44d5b9631223abc400c41c3593134ef1 | 277 | 0 | 265 | 2,670 | 265 | ||
ANT-2026-K9VH6KBR | https://red.anthropic.com/2026/cvd/findings/ANT-2026-K9VH6KBR | freerdp/freerdp | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-64620"
] | [
"GHSA-pjqx-v446-x7fc"
] | libfreerdp/crypto/crypto.c:106 | static analysis — not yet dynamically reproduced | ANT-2026-K9VH6KBR: Pre-auth server heap overflow decrypting client random | In libfreerdp/crypto/crypto.c:106, BN_bn2bin(y, output) writes up to the RSA modulus length (64–256 bytes) into the caller's buffer and only checks the size afterward. The caller rdp_update_client_random() (connection.c:876-882) passes a fixed 32-byte ClientRandom heap buffer as the output for decrypting the attacker-s... | The root cause is a write-then-check ordering bug: BN_bn2bin(y, output) unconditionally writes BN_num_bytes(y) bytes into the output buffer, and the comparison against out_length at line 109 happens only after the write has already occurred. Since rdp_update_client_random() allocates ClientRandom as a fixed calloc(32,1... | Connect and advertise only PROTOCOL_RDP in the X.224 Connection Request, forcing the server to select RDP Standard Security (connection.c:1487).
Receive the server's Proprietary Server Certificate containing the RSA public key (n, e) in the MCS Connect Response.
Choose a plaintext Y < n with the top byte set so BN_num_... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-K9VH6KBR.
Reference:
ANT-2026-K9VH6KBR
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-K9VH6KBR: Pre-auth server heap overflow decrypting client random
In libfreerdp/crypto/crypto.c:106, BN_bn2bin(y, output) writes up to the RSA modulus length (64–256 bytes) into the caller's buffer and only checks the size afterward. The caller rdp_update_client_random() (connection.c:876-882) passes a fixed 32... | Ada Logics | true positive | diff --git a/libfreerdp/crypto/crypto.c b/libfreerdp/crypto/crypto.c
index 836f84e9b9dd..63012ae8e5d3 100644
--- a/libfreerdp/crypto/crypto.c
+++ b/libfreerdp/crypto/crypto.c
@@ -103,11 +103,14 @@ static SSIZE_T crypto_rsa_common(const BYTE* input, size_t length, UINT32 key_le
goto fail;
if (BN_mod_exp(y, x, exp, mod, ... | # ANT-2026-K9VH6KBR: ANT-2026-K9VH6KBR · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-64620, GHSA-pjqx-v446-x7fc
## Vulnerability Summary
In libfre... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-K9VH6KBR · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | disclosed | true | 2026-04-02 | 2026-07-22 | 78d201cc43cfb9a7f1429da455c889e2358f1d7ae6f12e7f4f02e255297e156c1d51c18c9de9c0210c001ab248b1b4cf687a10c15765b9f5c8ac46fae8093d8d | 704 | 254 | 954 | 9,997 | 1,208 | |
ANT-2026-AM0R21ZY | https://red.anthropic.com/2026/cvd/findings/ANT-2026-AM0R21ZY | supabase/supabase | broken-access-control | medium | medium | - | - | Claude Mythos Preview | [] | [] | apps/studio/lib/ai/ai-details.ts:27 | static analysis — not yet dynamically reproduced | ANT-2026-AM0R21ZY: HIPAA sensitive-project AI block enforced only client-side | The client hook useOrgAiOptInLevel forces aiOptInLevel to 'disabled' when an org has the HIPAA add-on and the project is flagged sensitive, but the server-side getAiDetails() in lib/ai/ai-details.ts only reads the org's opt_in_tags and never checks project sensitivity or HIPAA status. All AI API routes (/api/ai/sql/gen... | getAiDetails() calls getAiOptInLevel(selectedOrg?.opt_in_tags) and returns immediately; it never fetches the project's is_sensitive flag or the org's HIPAA add-on status, so the downgrade-to-'disabled' logic that exists in the client hook is absent server-side. Because the API handlers trust this value, the compliance ... | Observe that the Assistant UI is greyed out for the sensitive project.
Open browser devtools and copy a previous request to /api/ai/sql/generate-v4 (or similar AI route).
Replay the request directly with the sensitive project's projectRef.
Server-side getAiDetails reads only org opt_in_tags, returns a non-disabled aiOp... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-AM0R21ZY.
Reference:
ANT-2026-AM0R21ZY
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-AM0R21ZY: HIPAA sensitive-project AI block enforced only client-side
The client hook useOrgAiOptInLevel forces aiOptInLevel to 'disabled' when an org has the HIPAA add-on and the project is flagged sensitive, but the server-side getAiDetails() in lib/ai/ai-details.ts only reads the org's opt_in_tags and never ... | diff --git a/apps/studio/lib/ai/ai-details.test.ts b/apps/studio/lib/ai/ai-details.test.ts
index 6102aaf445dc1..56e4b61b3a2b9 100644
--- a/apps/studio/lib/ai/ai-details.test.ts
+++ b/apps/studio/lib/ai/ai-details.test.ts
@@ -1,6 +1,6 @@
import { beforeEach, describe, expect, it, vi } from 'vitest'
-import { getOrgAIDet... | # ANT-2026-AM0R21ZY: ANT-2026-AM0R21ZY · supabase/supabase
**Project:** supabase/supabase | **Bug Class:** broken-access-control
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
The client hook useOrgAiOptInLevel forces aiOptInLevel to 'disa... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-AM0R21ZY · supabase/supabase</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-05-10 | 2026-05-18 | 865e16fe8de1cf11c3d4c31e6303eb13ff8c84a3a62fd8b597f17baac56cc6c4a772f06ffa12a454c9a8dac7c7b69f3d4cfe594d2ea28eb6fd37af330936bdd6 | 562 | 2,133 | 2,625 | 8,554 | 4,758 | |||
ANT-2026-YQ12XT7Y | https://red.anthropic.com/2026/cvd/findings/ANT-2026-YQ12XT7Y | openbabel | heap-buffer-overflow | high | critical | high | - | Claude Mythos Preview | [] | [
"GHSA-mrvp-58gg-8x22"
] | ANT-2026-YQ12XT7Y: Heap-buffer-overflow in openbabel | OpenBabel's MCDL (Molecular Chemical Description Language) parser in MCDLformat.cpp allocates thechargesandradicalsvectors with a fixed size of MAXFRAGS=200. When parsing the{CZ:...}charge block, it extracts an atom index vian2 = atoi(sa1.c_str())and writes directly tocharges[n2-1]without validating thatn2 <= MAXFRAGS.... | ASAN: heap-buffer-overflow WRITE past an 800-byte region. The 800-byte region corresponds to
std::vector<int> charges(MAXFRAGS)
with MAXFRAGS=200 (200 × 4 bytes). The index
n2
is taken directly from user input (
atoi
on the substring before the comma in
{CZ:n2,charge}
) and used unchecked as
charges[n2-1] = n1
, so any... | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-YQ12XT7Y.
Reference:
ANT-2026-YQ12XT7Y
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-YQ12XT7Y: Heap-buffer-overflow in openbabel
OpenBabel's MCDL (Molecular Chemical Description Language) parser in MCDLformat.cpp allocates the
charges
and
radicals
vectors with a fixed size of MAXFRAGS=200. When parsing the
{CZ:...}
charge block, it extracts an atom index via
n2 = atoi(sa1.c_str())
and writes d... | Ada Logics | true positive | # ANT-2026-YQ12XT7Y: ANT-2026-YQ12XT7Y · openbabel
**Project:** openbabel | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** GHSA-mrvp-58gg-8x22
## Vulnerability Summary
OpenBabel's MCDL (Molecular Chem... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-YQ12XT7Y · openbabel</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t=... | fixed | true | 2026-03-24 | 2026-05-07 | 60c7e49a9cc3c4e19f32ea2add6e062aba6f7f88fd013cebfd4388de8de5fee576869dbcc5fb22a829d365e21dc0206d99ee1798af5d63dbdfcaeac13c361a16 | 593 | 0 | 588 | 3,789 | 588 | ||||
ANT-2026-61Y3NTY3 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-61Y3NTY3 | oisf/suricata | use-after-free | high | critical | high | - | Claude Mythos Preview | [
"CVE-2026-45752"
] | [
"GHSA-qmc9-vqq2-8mv3"
] | mod.rs:547 | ANT-2026-61Y3NTY3: Use-after-free in mod.rs:547 | In Suricata's detection transform pipeline, decompress_transform (decompress.rs:136) calls SCInspectionBufferCheckAndExpand, which reallocs the inspection buffer — freeing the old 4096-byte region. A slice still pointing into that freed region is then passed to gunzip_transform_do (decompress.rs:118), which hands it to... | ASAN: heap-use-after-free, READ of size 10 at 0x7088ec6ff500. The free and the use occur within the same invocation of decompress_transform: line 136 grows the inspection buffer via realloc (invalidating prior pointers), but the input slice handed to the GzDecoder at line 154→118 was derived before the realloc and is n... | Operator has a rule using http.uri; to_lowercase; decompress; (or equivalent transform chain)
Attacker sends an HTTP request to a monitored host with a URI crafted so the tolower_transform allocates a 4096-byte inspection buffer
decompress_transform calls SCInspectionBufferCheckAndExpand which reallocs the buffer to a ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-61Y3NTY3.
Reference:
ANT-2026-61Y3NTY3
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-61Y3NTY3: Use-after-free in mod.rs:547
In Suricata's detection transform pipeline, decompress_transform (decompress.rs:136) calls SCInspectionBufferCheckAndExpand, which reallocs the inspection buffer — freeing the old 4096-byte region. A slice still pointing into that freed region is then passed to gunzip_tra... | Trail of Bits | true positive | diff --git a/rust/src/detect/transforms/decompress.rs b/rust/src/detect/transforms/decompress.rs
index 44c21951d09c..3104a54b0090 100644
--- a/rust/src/detect/transforms/decompress.rs
+++ b/rust/src/detect/transforms/decompress.rs
@@ -20,8 +20,8 @@ use crate::detect::SIGMATCH_OPTIONAL_OPT;
use flate2::bufread::{GzDecod... | # ANT-2026-61Y3NTY3: ANT-2026-61Y3NTY3 · oisf/suricata
**Project:** oisf/suricata | **Bug Class:** use-after-free
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-45752, GHSA-qmc9-vqq2-8mv3
## Vulnerability Summary
In Suricata's d... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-61Y3NTY3 · oisf/suricata</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-24 | 2026-04-29 | 8cce47a2adebd5006d22356386d064c55cf3edb7c252b5356e40193df6336e47e160560b2597f239706d901ab28486a56a3ad0b905fb45297118f87dcdbb9633 | 1,417 | 623 | 2,077 | 6,152 | 2,700 | ||
ANT-2026-ZGY30A9P | https://red.anthropic.com/2026/cvd/findings/ANT-2026-ZGY30A9P | c-blosc2 | heap-buffer-overflow | medium | medium | medium | - | Claude Mythos Preview | [] | [] | static analysis — not yet dynamically reproduced | ANT-2026-ZGY30A9P: Heap buffer overflow in compression header block-starts write due to undersized buffer | Heap buffer overflow when writing block-starts in the compression header due to an undersized buffer allocation. | The buffer allocated for the compression header's block-starts is undersized, causing a heap write past the end of the allocation. | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-ZGY30A9P.
Reference:
ANT-2026-ZGY30A9P
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-ZGY30A9P: Heap buffer overflow in compression header block-starts write due to undersized buffer
Heap buffer overflow when writing block-starts in the compression header due to an undersized buffer allocation.
Target
Project:
c-blosc2
Discovery:
static analysis — not yet dynamically reproduced
Technical Detail... | Trail of Bits | true positive | # ANT-2026-ZGY30A9P: ANT-2026-ZGY30A9P · c-blosc2
**Project:** c-blosc2 | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
Heap buffer overflow when writing block-starts in the compression header due to an... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-ZGY30A9P · c-blosc2</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==... | fixed | true | 2026-03-29 | 2026-04-09 | 0f5a03eb1d1a958f92007e3958e19f99d31d84726960429dbf184d7182964697fbec015d71751121c44d57706247aa4a8fe212f82f9986a6ba4e372af5c6e73a | 242 | 0 | 233 | 2,528 | 233 | |||
ANT-2026-C0BW3XD3 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-C0BW3XD3 | libmspub | heap-buffer-overflow | high | high | high | - | Claude Opus 4.6 | [] | [] | MSPUBParser.cpp:1575 | ANT-2026-C0BW3XD3: Heap-buffer-overflow in MSPUBParser.cpp:1575 | When parsing a crafted Microsoft Publisher document, MSPUBParser::getNewFill allocates a 16-byte std::vector at MSPUBParser.cpp:2077 and then reads one byte immediately past its end at line 2084. The bug is reached via MSPUBDocument::parse → parseEscher → parseShapeGroup → parseEscherShape → getNewFill, so any consumer... | ASAN: "READ of size 1 at 0x7165cf1e39e0 ... 0 bytes after 16-byte region". The vector created at line 2077 is exactly 16 bytes, but the indexing expression at line 2084 (column 101) accesses element 16, i.e. one past the last valid index. The code appears to lack a bounds check against the vector size before indexing f... | Craft a .pub document containing an Escher container with a shape whose fill property blob is sized such that the vector constructed at MSPUBParser.cpp:2077 is shorter than the index used at line 2084
Deliver the file to the victim (email attachment, download, etc.)
Victim opens/imports the file; parser reaches getNewF... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-C0BW3XD3.
Reference:
ANT-2026-C0BW3XD3
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-C0BW3XD3: Heap-buffer-overflow in MSPUBParser.cpp:1575
When parsing a crafted Microsoft Publisher document, MSPUBParser::getNewFill allocates a 16-byte std::vector at MSPUBParser.cpp:2077 and then reads one byte immediately past its end at line 2084. The bug is reached via MSPUBDocument::parse → parseEscher → ... | Ada Logics | true positive | # ANT-2026-C0BW3XD3: ANT-2026-C0BW3XD3 · libmspub
**Project:** libmspub | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Opus 4.6 | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
When parsing a crafted Microsoft Publisher document, MSPUBParser::getNewFill allocates a 1... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-C0BW3XD3 · libmspub</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==... | fixed | true | 2026-03-24 | 2026-05-19 | 0fafa89709fdbbb4e17edcd49473be9be669b854ea4d545f7e021f838e7bc877ca5bcc474919cacf4b1c7529fc153a81c4c7f22bfc4fda4b02595633dfa9a7d8 | 1,267 | 0 | 1,262 | 4,733 | 1,262 | |||
ANT-2026-DJBBBBPE | https://red.anthropic.com/2026/cvd/findings/ANT-2026-DJBBBBPE | temporalio/temporal | broken-access-control | low | critical | - | low | Claude Mythos Preview | [
"CVE-2026-5199"
] | [] | static analysis — not yet dynamically reproduced | ANT-2026-DJBBBBPE: Cross-namespace manipulation (including deletion) of workflows on the same cluster | Workflows can be manipulated or deleted across namespace boundaries within the same cluster. | checkNamespaceID() at activities.go:283 only compares batchParams.NamespaceId to a.namespaceID; the redundant batchParams.Request.Namespace field is never checked and is then used verbatim in frontendClient.SignalWorkflowExecution / DeleteWorkflowExecution / etc. Because frontendClient dials internal-frontend, whose no... | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-DJBBBBPE.
Reference:
ANT-2026-DJBBBBPE
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-DJBBBBPE: Cross-namespace manipulation (including deletion) of workflows on the same cluster
Workflows can be manipulated or deleted across namespace boundaries within the same cluster.
Target
Project:
temporalio/temporal
Discovery:
static analysis — not yet dynamically reproduced
Technical Details
checkNamesp... | # ANT-2026-DJBBBBPE: ANT-2026-DJBBBBPE · temporalio/temporal
**Project:** temporalio/temporal | **Bug Class:** broken-access-control
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** low
**Security Advisories:** CVE-2026-5199
## Vulnerability Summary
Workflows can be... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-DJBBBBPE · temporalio/temporal</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_the... | fixed | true | 2026-03-22 | 2026-05-08 | 6f20094036e4b8c066b9a2f033c4e59b99f883e623acbb0256d7ce0310528a13c03d24f7d1f5a1817de5b29e350a97a62ead6a93eb9a92e6881fb17052a7d2e4 | 299 | 0 | 274 | 2,780 | 274 | |||||
ANT-2026-BRQZSDGZ | https://red.anthropic.com/2026/cvd/findings/ANT-2026-BRQZSDGZ | minio/minio | path-traversal | critical | critical | high | medium | [] | [
"GHSA-xh8f-g2qw-gcm7"
] | # ANT-2026-BRQZSDGZ: ANT-2026-BRQZSDGZ · minio/minio
**Project:** minio/minio | **Bug Class:** path-traversal
**Attributed Model:** | **Claude Severity:** critical | **Maintainer Severity:** medium
**Security Advisories:** GHSA-xh8f-g2qw-gcm7 | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-BRQZSDGZ · withdrawn</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t=... | withdrawn | true | 2026-04-11 | 2026-05-07 | cd34ead134540b9ec9509b987370c159897bd2fc5ee0ea7edbb4a563cc64937dc905942dd38373ec163fde1a3941046f909d41c6d63187ad18babde4b5f7d085 | 0 | 0 | 84 | 991 | 84 | |||||||||||||
ANT-2026-DD4RKCBA | https://red.anthropic.com/2026/cvd/findings/ANT-2026-DD4RKCBA | opensc | stack-buffer-overflow | medium | medium | medium | - | Claude Mythos Preview | [] | [] | asn1_encode_p15_object() | static analysis — not yet dynamically reproduced | ANT-2026-DD4RKCBA: Stack buffer overflow in asn1_encode_p15_object access rules loop due to array index exceeding bounds | The access rules loop in asn1_encode_p15_object allows the array index to exceed bounds, causing a stack buffer overflow. | The loop iterating over access rules in asn1_encode_p15_object does not correctly bound the array index, resulting in writes past the end of a stack-allocated buffer. | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-DD4RKCBA.
Reference:
ANT-2026-DD4RKCBA
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-DD4RKCBA: Stack buffer overflow in asn1_encode_p15_object access rules loop due to array index exceeding bounds
The access rules loop in asn1_encode_p15_object allows the array index to exceed bounds, causing a stack buffer overflow.
Target
Project:
opensc
Location:
asn1_encode_p15_object()
Discovery:
static a... | Trail of Bits | true positive | # ANT-2026-DD4RKCBA: ANT-2026-DD4RKCBA · opensc
**Project:** opensc | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
The access rules loop in asn1_encode_p15_object allows the array index to exceed boun... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-DD4RKCBA · opensc</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="... | fixed | true | 2026-03-29 | 2026-04-09 | 51b7525cf6d947bd4ae6bc104f1abfe6e48bafc192b8637d618f4ec408a51a2eda57bcc7aac6aa75df82cca2d785620e665d1722dc865b4d74f9fd9bdad38f65 | 262 | 0 | 251 | 2,622 | 251 | ||
ANT-2026-MVVACQKN | https://red.anthropic.com/2026/cvd/findings/ANT-2026-MVVACQKN | freebsd/freebsd-src | stack-buffer-overflow | high | high | - | high | [
"CVE-2026-4747"
] | [] | svc_rpc_gss_validate() in sys/rpc/rpcsec_gss/svc_rpcsec_gss.c | ANT-2026-MVVACQKN: Unauthenticated remote code execution via svc_rpc_gss_validate stack overflow | svc_rpc_gss_validate() in the FreeBSD kernel RPCSEC_GSS implementation serialises the RPC header into a fixed 128-byte stack array (int32_t rpchdr[32]), writes 32 bytes of XDR fields, then memcpy's the raw on-wire credential body (oa->oa_base, oa->oa_length) into the remaining 96 bytes. xdr_callmsg() bounds oa_length o... | The root cause is that rpchdr is hard-coded to 128 bytes while the function writes 8*4 bytes of header plus up to MAX_AUTH_BYTES (400) of credential body into it, with no bounds check on the memcpy. The crash confirms direct control of saved callee-save registers and frame pointer: "Fatal trap 9: general protection fau... | TCP-connect to port 2049.
Send RPC CALL (prog=100003, vers=3, NULLPROC) with cred.flavor=RPCSEC_GSS, cred.len=20, gc_proc=RPCSEC_GSS_INIT, gc_handle_len=0, verf=AUTH_NULL, empty token — svc_rpc_gss_create_client() inserts a CLIENT_NEW entry into the hash with a predictable {hostid, boottime, sequential ci_id} handle an... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-MVVACQKN.
Reference:
ANT-2026-MVVACQKN
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-MVVACQKN: Unauthenticated remote code execution via svc_rpc_gss_validate stack overflow
svc_rpc_gss_validate() in the FreeBSD kernel RPCSEC_GSS implementation serialises the RPC header into a fixed 128-byte stack array (int32_t rpchdr[32]), writes 32 bytes of XDR fields, then memcpy's the raw on-wire credentia... | # ANT-2026-MVVACQKN: ANT-2026-MVVACQKN · freebsd/freebsd-src
**Project:** freebsd/freebsd-src | **Bug Class:** stack-buffer-overflow
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-4747
## Vulnerability Summary
svc_rpc_gss_validate() in the FreeBSD ke... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-MVVACQKN · freebsd/freebsd-src</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_the... | fixed | true | 2026-03-20 | 2026-03-20 | a70f894567778a93655d53636c3e2ab8632b78b010b9316f2e8367e8fc07af5e2a2991d837bcd6a7b95496ebc4fe0e7626306191585adc700b5e9b49774d078b | 1,180 | 0 | 1,055 | 19,680 | 1,055 | ||||||
ANT-2026-EWM7B5QP | https://red.anthropic.com/2026/cvd/findings/ANT-2026-EWM7B5QP | freerdp/freerdp | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-63633"
] | [
"GHSA-72j9-356v-88xq"
] | libfreerdp/codec/dsp.c:685 | static analysis — not yet dynamically reproduced | ANT-2026-EWM7B5QP: Opus audio decode resizes wrong stream, overflows output | In freerdp_dsp_decode_opus() (libfreerdp/codec/dsp.c:682-692), the code computes max_size = OPUS_MAX_FRAMES * channels * sizeof(int16_t) and calls Stream_EnsureRemainingCapacity() on context->common.buffer instead of the caller-suppliedoutstream that opus_decode() actually writes into.outcomes from StreamPool_Take(pool... | The root cause is a copy-paste bug: Stream_EnsureRemainingCapacity() is called on context->common.buffer (dsp.c:683) rather than on
out
, while opus_decode() writes to Stream_Pointer(out) with frame_size=OPUS_MAX_FRAMES (dsp.c:687-688). Every sibling codec in the same file correctly resizes
out
(dsp.c:516,535,590,770,8... | Client iterates server-supplied audio formats (rdpsnd_main.c:180-194); freerdp_dsp_supports_format() returns TRUE for WAVE_FORMAT_OPUS (dsp.c:1576-1577), so the client advertises Opus.
Server selects the Opus format index and sends a Wave/Wave2 PDU containing a ≥40 ms Opus packet.
rdpsnd_main.c:634 obtains pcmData = St... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-EWM7B5QP.
Reference:
ANT-2026-EWM7B5QP
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-EWM7B5QP: Opus audio decode resizes wrong stream, overflows output
In freerdp_dsp_decode_opus() (libfreerdp/codec/dsp.c:682-692), the code computes max_size = OPUS_MAX_FRAMES * channels * sizeof(int16_t) and calls Stream_EnsureRemainingCapacity() on context->common.buffer instead of the caller-supplied
out
str... | Ada Logics | true positive | diff --git a/libfreerdp/codec/dsp.c b/libfreerdp/codec/dsp.c
index b4c083e18dd7..dc5fbde1f8bd 100644
--- a/libfreerdp/codec/dsp.c
+++ b/libfreerdp/codec/dsp.c
@@ -681,7 +681,7 @@ static BOOL freerdp_dsp_decode_opus(FREERDP_DSP_CONTEXT* WINPR_RESTRICT context,
/* Max packet duration is 120ms (5760 at 48KHz) */
const siz... | # ANT-2026-EWM7B5QP: ANT-2026-EWM7B5QP · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-63633, GHSA-72j9-356v-88xq
## Vulnerability Summary
In freerd... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-EWM7B5QP · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | disclosed | true | 2026-04-02 | 2026-07-22 | f25c65dd628714bf5562cceab720fa2203283e59ed7dc2a2fab688cd384d115cd836aec627592b44f04f857ec74f30f100c9f635db36190c6d9a2f6574c3b999 | 765 | 184 | 941 | 10,745 | 1,125 | |
ANT-2026-Y9HESEM8 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-Y9HESEM8 | supabase/supabase | auth-bypass | medium | medium | - | - | Claude Mythos Preview | [] | [] | apps/studio/pages/api/ai/sql/generate-v4.ts:130 | static analysis — not yet dynamically reproduced | ANT-2026-Y9HESEM8: AI data-sharing opt-in bypassed by mismatched org and project | In apps/studio/pages/api/ai/sql/generate-v4.ts (and similarly in pages/api/ai/code/complete.ts), the handler reads orgSlug and projectRef as independent body parameters. It computes aiOptInLevel solely from getOrgAIDetails({orgSlug}) and then enables schema/log/data-reading tools that execute against projectRef. Becaus... | Root cause is a missing ownership check: aiOptInLevel is derived from the orgSlug parameter independently of the projectRef parameter that the AI tools actually query, so the authorization decision and the resource accessed are decoupled. The server also fails to replicate the client-side useOrgAiOptInLevel logic that ... | Identify Org A with aiOptInLevel 'schema_and_log_and_data' and Org B with opt-in 'disabled' (or HIPAA add-on + sensitive project).
POST to /api/ai/sql/generate-v4 with body {orgSlug: 'org-a', projectRef: '', connectionString: '', messages: [...]}.
Server reads Org A's full-data opt-in and enables list_tables / get_logs... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-Y9HESEM8.
Reference:
ANT-2026-Y9HESEM8
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-Y9HESEM8: AI data-sharing opt-in bypassed by mismatched org and project
In apps/studio/pages/api/ai/sql/generate-v4.ts (and similarly in pages/api/ai/code/complete.ts), the handler reads orgSlug and projectRef as independent body parameters. It computes aiOptInLevel solely from getOrgAIDetails({orgSlug}) and t... | diff --git a/apps/studio/lib/ai/ai-details.test.ts b/apps/studio/lib/ai/ai-details.test.ts
index 6102aaf445dc1..56e4b61b3a2b9 100644
--- a/apps/studio/lib/ai/ai-details.test.ts
+++ b/apps/studio/lib/ai/ai-details.test.ts
@@ -1,6 +1,6 @@
import { beforeEach, describe, expect, it, vi } from 'vitest'
-import { getOrgAIDet... | # ANT-2026-Y9HESEM8: ANT-2026-Y9HESEM8 · supabase/supabase
**Project:** supabase/supabase | **Bug Class:** auth-bypass
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
In apps/studio/pages/api/ai/sql/generate-v4.ts (and similarly in pages/ap... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-Y9HESEM8 · supabase/supabase</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-05-10 | 2026-05-18 | 8dfbbcc57f9b0dd5b5e0abe44654b299a3fabc46e8e1ceed32be939cc4b6081bd72983fb94a018f19948c82aae736fa603dfe8c717114e9f5ee62bdea0a32659 | 623 | 2,133 | 2,672 | 8,862 | 4,805 | |||
ANT-2026-XV1EVAMH | https://red.anthropic.com/2026/cvd/findings/ANT-2026-XV1EVAMH | libreoffice/core | heap-buffer-overflow | medium | critical | high | medium | Claude Sonnet 4.6 | [
"CVE-2026-8357"
] | [] | ANT-2026-XV1EVAMH: Heap-buffer-overflow in libreoffice | LibreOffice Calc's formula compiler (ScCompiler::CompileString in sc/source/core/tool/compiler.cxx) allocates a FunctionStack array sized to the formula string length when that length exceeds a 512-element stack buffer. For each '(' token it increments nFunction and writes to pFunctionStack[nFunction] without bounds ch... | ASAN: heap-buffer-overflow WRITE of size 2 at 0x51d000009484 in ScCompiler::CompileString (compiler.cxx:4907:53). The root cause is an off-by-one: the FunctionStack heap buffer is sized to rFormula.getLength() (513), but nFunction starts at 0 and is pre-incremented once per '(' token, so 513 open-parens drive the index... | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-XV1EVAMH.
Reference:
ANT-2026-XV1EVAMH
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-XV1EVAMH: Heap-buffer-overflow in libreoffice
LibreOffice Calc's formula compiler (ScCompiler::CompileString in sc/source/core/tool/compiler.cxx) allocates a FunctionStack array sized to the formula string length when that length exceeds a 512-element stack buffer. For each '(' token it increments nFunction an... | Ada Logics | true positive | # ANT-2026-XV1EVAMH: ANT-2026-XV1EVAMH · libreoffice/core
**Project:** libreoffice/core | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Sonnet 4.6 | **Claude Severity:** critical | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-8357
## Vulnerability Summary
LibreOffice Calc's form... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-XV1EVAMH · libreoffice/core</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme"... | fixed | true | 2026-03-24 | 2026-05-07 | 46a2e2e4443a4f989f784b937a63d3aa8021f566ad7d8f9974478c1791e72f7c64c4d7e525f2dab06d95313c4dd097f29f18a4934760cf9edc5ff0881631d565 | 557 | 0 | 563 | 3,586 | 563 | ||||
ANT-2026-WCSVRYAX | https://red.anthropic.com/2026/cvd/findings/ANT-2026-WCSVRYAX | oisf/suricata | use-after-free | high | critical | high | - | Claude Mythos Preview | [
"CVE-2026-45751"
] | [
"GHSA-59q6-j4w8-8pjx"
] | 7eb45c02afbaf2ad | ANT-2026-WCSVRYAX: heap-use-after-free in suricata | A heap-use-after-free was detected in Suricata while fuzzing through the fuzz_sigpcap_aware7 harness. The faulting access is a READ of freed heap memory. The sigpcap_aware harness drives combined signature rules and pcap traffic through the detection engine, so the bug is likely reachable via a crafted rule set paired ... | AddressSanitizer heap-use-after-free (READ) in Suricata triggered via the fuzz_sigpcap_aware7 fuzzing entrypoint.
Crash signature:
ASAN heap-use-after-free READ | Reproduce against the commit listed above as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-WCSVRYAX.
Reference:
ANT-2026-WCSVRYAX
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-WCSVRYAX: heap-use-after-free in suricata
A heap-use-after-free was detected in Suricata while fuzzing through the fuzz_sigpcap_aware7 harness. The faulting access is a READ of freed heap memory. The sigpcap_aware harness drives combined signature rules and pcap traffic through the detection engine, so the bug... | Trail of Bits | true positive | diff --git a/rust/src/detect/transforms/dotprefix.rs b/rust/src/detect/transforms/dotprefix.rs
index 2b52462fba1a..b6f973835671 100644
--- a/rust/src/detect/transforms/dotprefix.rs
+++ b/rust/src/detect/transforms/dotprefix.rs
@@ -18,8 +18,8 @@
use crate::detect::SIGMATCH_NOOPT;
use suricata_sys::sys::{
DetectEngineCtx... | # ANT-2026-WCSVRYAX: ANT-2026-WCSVRYAX · oisf/suricata
**Project:** oisf/suricata | **Bug Class:** use-after-free
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-45751, GHSA-59q6-j4w8-8pjx
## Vulnerability Summary
A heap-use-afte... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-WCSVRYAX · oisf/suricata</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-27 | 2026-04-29 | b21d5c53bcd9424f1c836f2ca4da99b974bbc8e0df5a3ef201cb2cc4f734880595b27a54ff544e55a50dc1268af982b35e83fea10a760091735bb9d8ffc4b5c8 | 282 | 405 | 728 | 3,675 | 1,133 | ||
ANT-2026-ZPF40VKS | https://red.anthropic.com/2026/cvd/findings/ANT-2026-ZPF40VKS | freerdp/freerdp | double-free | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-63652"
] | [
"GHSA-9g22-w2gr-vcmp"
] | channels/rdpsnd/server/rdpsnd_main.c:263 | static analysis — not yet dynamically reproduced | ANT-2026-ZPF40VKS: Audio server double-free of client format list | In rdpsnd_server_recv_formats(), the server allocates context->client_formats and then parses each client audio format; if a format's cbSize exceeds remaining stream bytes, Stream_SafeSeek() fails and control jumps to out_free, which frees context->client_formats but leaves the pointer and num_client_formats intact. Th... | The out_free label at rdpsnd_main.c:263 calls free(context->client_formats) without setting the pointer to NULL or clearing num_client_formats; nothing else on the error/stop/reset path clears it either. Because rdpsnd_server_context_free() at line ~1143 unconditionally calls free(context->client_formats) during teardo... | Authenticate to the FreeRDP shadow/proxy/sample server and join the RDPSND channel
In response to the server's SNDC_FORMATS, send a Client Audio Formats PDU where one format's cbSize (e.g. 0xFFFF) exceeds remaining stream bytes
Stream_SafeSeek() fails; out_free frees context->client_formats (size wNumberOfFormats * siz... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-ZPF40VKS.
Reference:
ANT-2026-ZPF40VKS
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-ZPF40VKS: Audio server double-free of client format list
In rdpsnd_server_recv_formats(), the server allocates context->client_formats and then parses each client audio format; if a format's cbSize exceeds remaining stream bytes, Stream_SafeSeek() fails and control jumps to out_free, which frees context->clien... | Ada Logics | true positive | diff --git a/channels/rdpsnd/server/rdpsnd_main.c b/channels/rdpsnd/server/rdpsnd_main.c
index 3d0052e828f2..9955932310f6 100644
--- a/channels/rdpsnd/server/rdpsnd_main.c
+++ b/channels/rdpsnd/server/rdpsnd_main.c
@@ -181,6 +181,14 @@ static UINT rdpsnd_server_recv_quality_mode(RdpsndServerContext* context, wStrea
ret... | # ANT-2026-ZPF40VKS: ANT-2026-ZPF40VKS · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** double-free
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-63652, GHSA-9g22-w2gr-vcmp
## Vulnerability Summary
In rdpsnd_server_r... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-ZPF40VKS · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | disclosed | true | 2026-04-02 | 2026-07-22 | 7d3085a90155c6cf9d8c963b5da4bf757e3f9c07044f326ccd172b54cd6e420d1808fe44d41917ddf06e8d1d03e33b1b174eb8afb9396c3dc416b4740ed194f8 | 674 | 321 | 993 | 10,595 | 1,314 | |
ANT-2026-BH289AV8 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-BH289AV8 | c-blosc2 | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | static analysis — not yet dynamically reproduced | ANT-2026-BH289AV8: Heap buffer overflow in ndcell filter via unchecked ndim metadata deserialization | The ndcell filter deserializes ndim metadata without bounds checking, leading to a heap buffer overflow. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-BH289AV8.
Reference:
ANT-2026-BH289AV8
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-BH289AV8: Heap buffer overflow in ndcell filter via unchecked ndim metadata deserialization
The ndcell filter deserializes ndim metadata without bounds checking, leading to a heap buffer overflow.
Target
Project:
c-blosc2
Discovery:
static analysis — not yet dynamically reproduced
Reproduction
This finding was... | Trail of Bits | true positive | # ANT-2026-BH289AV8: ANT-2026-BH289AV8 · c-blosc2
**Project:** c-blosc2 | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
The ndcell filter deserializes ndim metadata without bounds checking, leading to a h... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-BH289AV8 · c-blosc2</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==... | fixed | true | 2026-03-29 | 2026-04-09 | 7863b57244e2a5971bffe828abfd7eabc706bf502d9ab154aadc2ceb8ca67e9db0b16ec30116fea40bcbe87b0b764926d3b17224e0957df7a24b243c9306d2af | 200 | 0 | 192 | 2,363 | 192 | ||||
ANT-2026-J3EVXWDY | https://red.anthropic.com/2026/cvd/findings/ANT-2026-J3EVXWDY | twigphp/twig | code-injection | critical | high | high | critical | Claude Mythos Preview | [
"CVE-2026-46633"
] | [
"GHSA-7p85-w9px-jpjp"
] | src/Node/ModuleNode.php:254 | static analysis — not yet dynamically reproduced | ANT-2026-J3EVXWDY: PHP code injection via single quote in {% use %} template name | In ModuleNode::compileConstructor() (lines 251-255), the error message for an undefined trait block is built by writing a single-quoted PHP string and interpolating the trait template name via subcompile(). Compiler::string() escapes double quotes and backslashes but not single quotes, and UseTokenParser accepts arbitr... | The compiler opens a single-quoted PHP literal with ->write("throw new RuntimeError('Block ") and does not close it before subcompiling the trait template-name node; Compiler::string() uses addcslashes on \0\t\"\$\ only, so single quotes pass through unescaped. A template name containing ' terminates the outer string a... | Create a template in the loader named '.system('id').' containing {% block x %}{% endblock %}
Create a second template containing: {% use "'.system('id').'" with foo as bar %}
Compilation emits: throw new RuntimeError('Block "foo" is not defined in trait "'.system('id').'".', 1, $this->source);
Render the second templa... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-J3EVXWDY.
Reference:
ANT-2026-J3EVXWDY
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-J3EVXWDY: PHP code injection via single quote in {% use %} template name
In ModuleNode::compileConstructor() (lines 251-255), the error message for an undefined trait block is built by writing a single-quoted PHP string and interpolating the trait template name via subcompile(). Compiler::string() escapes doub... | Anvil Security | true positive | diff --git a/src/Node/ModuleNode.php b/src/Node/ModuleNode.php
index 71c57201982..a3f66827ff6 100644
--- a/src/Node/ModuleNode.php
+++ b/src/Node/ModuleNode.php
@@ -248,11 +248,11 @@ protected function compileConstructor(Compiler $compiler)
->string($key)
->raw("])) {\n")
->indent()
- ->write("th... | # ANT-2026-J3EVXWDY: ANT-2026-J3EVXWDY · twigphp/twig
**Project:** twigphp/twig | **Bug Class:** code-injection
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** critical
**Security Advisories:** CVE-2026-46633, GHSA-7p85-w9px-jpjp
## Vulnerability Summary
In ModuleNode:... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-J3EVXWDY · twigphp/twig</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if... | fixed | true | 2026-04-19 | 2026-05-19 | 93b28dc10565abff791346a81f85dd6ab280b8d67795c451349092fc8cacd8d74fa1efe5ea8621424843330fcf14161d7bd1d3108e0fd946afbe9cba8e5d9d2f | 575 | 598 | 1,142 | 5,940 | 1,740 | |
ANT-2026-6SNS6KMP | https://red.anthropic.com/2026/cvd/findings/ANT-2026-6SNS6KMP | gitoxidelabs/gitoxide | rce | high | high | - | high | Claude Mythos Preview | [] | [
"GHSA-f26g-jm89-4g65"
] | static analysis — not yet dynamically reproduced | ANT-2026-6SNS6KMP: RCE when updating a Git submodule of a malicious repository | Updating a Git submodule from a malicious repository leads to remote code execution. | Step [A] reads
submodule.<name>.update
newest-to-oldest across sections, so if the trusted override section has no
update
key the attacker's .gitmodules value is returned. Step [B] then disarms the guard because
.any(|s| s.header().subsection_name() == Some(name) && !std::ptr::eq(s.meta(), ours))
only checks that a for... | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-6SNS6KMP.
Reference:
ANT-2026-6SNS6KMP
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-6SNS6KMP: RCE when updating a Git submodule of a malicious repository
Updating a Git submodule from a malicious repository leads to remote code execution.
Target
Project:
gitoxidelabs/gitoxide
Discovery:
static analysis — not yet dynamically reproduced
Technical Details
Step [A] reads
submodule.<name>.update
n... | diff --git a/gix-submodule/src/access.rs b/gix-submodule/src/access.rs
index 0b2f5b21c2d..0ae7d654867 100644
--- a/gix-submodule/src/access.rs
+++ b/gix-submodule/src/access.rs
@@ -166,7 +166,12 @@ impl File {
/// Retrieve the `update` field of the submodule named `name`, if present.
pub fn update(&self, name: &BStr) -... | # ANT-2026-6SNS6KMP: ANT-2026-6SNS6KMP · gitoxidelabs/gitoxide
**Project:** gitoxidelabs/gitoxide | **Bug Class:** rce
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** GHSA-f26g-jm89-4g65
## Vulnerability Summary
Updating a Git submodule fr... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-6SNS6KMP · gitoxidelabs/gitoxide</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_t... | fixed | true | 2026-03-10 | 2026-05-08 | bc1d508742c8b9b677d57b6feae069ec5a97a697eba86a13021c648a8457d27998aac7f9245b25e244e4ae804163175bd310e4302c522abf267f76e64a845221 | 339 | 402 | 733 | 3,990 | 1,135 | ||||
ANT-2026-MHJX7J31 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-MHJX7J31 | typo3 | xss | medium | high | high | medium | Claude Mythos Preview | [
"CVE-2026-47345"
] | [
"GHSA-p5j5-4j3q-8mq8"
] | 93ed2f0ef8f842a6 | /var/www/html/vendor/masterminds/html5/src/HTML5/Serializer/OutputRules.php:314 | static analysis — not yet dynamically reproduced | ANT-2026-MHJX7J31: Stored XSS in TYPO3 HTML Sanitizer viaxmlnsNamespace URI Injection | TYPO3\HtmlSanitizer\Sanitizer::sanitize()is the last line of defence that TYPO3 places between editor-supplied RTE content and the browser. It isenabled by defaulton every frontend page render (ContentObjectRenderer::parseFunc()→stdWrap_htmlSanitize()). | OutputRules.php:314 serializes namespace declarations with
->wr($nsNode->nodeValue)
instead of
->wr($this->enc($nsNode->nodeValue, true))
, under the false assumption that namespace URIs are always safe constants. TYPO3\HtmlSanitizer\Serializer\Rules extends OutputRules but does not override namespaceAttrs(), and Commo... | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-MHJX7J31.
Reference:
ANT-2026-MHJX7J31
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-MHJX7J31: Stored XSS in TYPO3 HTML Sanitizer via
xmlns
Namespace URI Injection
TYPO3\HtmlSanitizer\Sanitizer::sanitize()
is the last line of defence that TYPO3 places between editor-supplied RTE content and the browser. It is
enabled by default
on every frontend page render (
ContentObjectRenderer::parseFunc()... | Doyensec | true positive | # ANT-2026-MHJX7J31: ANT-2026-MHJX7J31 · typo3
**Project:** typo3 | **Bug Class:** xss
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-47345, GHSA-p5j5-4j3q-8mq8
## Vulnerability Summary
TYPO3\HtmlSanitizer\Sanitizer::sanitize()... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-MHJX7J31 · typo3</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="l... | fixed | true | 2026-03-30 | 2026-05-07 | 189c82e012e75b5ab44d20ba1449802f6da28844dbac5d3b08165c48a31fe875043fe292cd13d1b1bd9054a429c2810b5e527a1e1c82752debd777935b8e0bfd | 542 | 0 | 432 | 8,320 | 432 | |
ANT-2026-ZYEZKB5Y | https://red.anthropic.com/2026/cvd/findings/ANT-2026-ZYEZKB5Y | opensc | stack-buffer-overflow | medium | medium | medium | - | Claude Mythos Preview | [] | [] | sign() in pkcs15-crypt | static analysis — not yet dynamically reproduced | ANT-2026-ZYEZKB5Y: Stack buffer overflow in pkcs15-crypt sign() via ASN1 sequence conversion without bounds | The sign() function in pkcs15-crypt performs an ASN.1 sequence conversion without bounds checking, overflowing a stack buffer. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-ZYEZKB5Y.
Reference:
ANT-2026-ZYEZKB5Y
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-ZYEZKB5Y: Stack buffer overflow in pkcs15-crypt sign() via ASN1 sequence conversion without bounds
The sign() function in pkcs15-crypt performs an ASN.1 sequence conversion without bounds checking, overflowing a stack buffer.
Target
Project:
opensc
Location:
sign() in pkcs15-crypt
Discovery:
static analysis — ... | Trail of Bits | true positive | # ANT-2026-ZYEZKB5Y: ANT-2026-ZYEZKB5Y · opensc
**Project:** opensc | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
The sign() function in pkcs15-crypt performs an ASN.1 sequence conversion without bou... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-ZYEZKB5Y · opensc</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="... | fixed | true | 2026-03-29 | 2026-04-09 | 51620db11d1ef94a21d5ecbb88557ae73f613fcec8b52856761db8ecec0c7f0eb21363bffc2d39d1e823ab0f0dce9ab4fb261e9433ab1aa36d8194fa170b9a17 | 220 | 0 | 207 | 2,455 | 207 | |||
ANT-2026-5DFBSQR9 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-5DFBSQR9 | freebsd/freebsd-src | use-after-free | high | high | - | high | [
"CVE-2026-5398",
"CVE-2026-6386"
] | [] | tty_drop_ctty() in sys/kern/tty.c; pmap_pkru_update_range() in sys/amd64/amd64/pmap.c | ANT-2026-5DFBSQR9: Local privilege escalation via tty_drop_ctty t_session UAF + pmap_pkru_update_range PDPE walk | In sys/kern/tty.c, tty_drop_ctty() clears the session→tty pointers and decrements the refcount but never clears tp->t_session; because s_ttyp is already NULL, sess_release() skips tty_rel_sess(), so when the session struct is freed tp->t_session is left dangling. Closing the pty master later walks tty_rel_gone → ttydis... | Bug 1: tty_drop_ctty() sets session->s_ttyp/s_ttyvp/s_ttydp = NULL and decrements t_sessioncnt but does not set tp->t_session = NULL; the normal cleanup path (sess_release → tty_rel_sess) is gated on s_ttyp being non-NULL, so it never runs and the tty retains a pointer into a freed malloc-128 session struct. Bug 2: at ... | (Oracle) shm_open2(SHM_ANON, …, SHM_LARGEPAGE) with lp_psind=2, ftruncate to 1GB, mmap at a 1GB-aligned VA; write a fake PDE and sentinel into the page; call sysarch(AMD64_SET_PKRU) on a 4KB sub-range and probe candidate physical bases until the sentinel's bits [62:59] change, revealing the page's physical address and ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-5DFBSQR9.
Reference:
ANT-2026-5DFBSQR9
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-5DFBSQR9: Local privilege escalation via tty_drop_ctty t_session UAF + pmap_pkru_update_range PDPE walk
In sys/kern/tty.c, tty_drop_ctty() clears the session→tty pointers and decrements the refcount but never clears tp->t_session; because s_ttyp is already NULL, sess_release() skips tty_rel_sess(), so when the... | # ANT-2026-5DFBSQR9: ANT-2026-5DFBSQR9 · freebsd/freebsd-src
**Project:** freebsd/freebsd-src | **Bug Class:** use-after-free
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-5398, CVE-2026-6386
## Vulnerability Summary
In sys/kern/tty.c, tty_drop_ctty... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-5DFBSQR9 · freebsd/freebsd-src</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_the... | fixed | true | 2026-03-19 | 2026-03-19 | edab0a66ee66870f8897e8e685ed52d5389cbc4d93db3a778bcd0c791aae829f1fefe819736950cb82dc00450bad2c325c3b2989ee0e103ce3c32837bd07fa7f | 1,151 | 0 | 923 | 20,419 | 923 | ||||||
ANT-2026-D5W3VWPN | https://red.anthropic.com/2026/cvd/findings/ANT-2026-D5W3VWPN | freerdp/freerdp | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-68579"
] | [
"GHSA-m37j-jcr2-8gcc"
] | client/Windows/wf_cliprdr.c:249 | static analysis — not yet dynamically reproduced | ANT-2026-D5W3VWPN: Windows clipboard stream read ignores caller buffer size | The Windows FreeRDP client's IStream::Read implementation for remote clipboard files (CliprdrStream_Read, wf_cliprdr.c:249) calls CopyMemory(pv, clipboard->req_fdata, clipboard->req_fsize) where req_fsize is taken directly from the server's CLIPRDR_FILE_CONTENTS_RESPONSE (wf_cliprdr.c:2449, cliprdr_common.c:377) and ne... | req_fsize is assigned directly from fileContentsResponse->cbRequested, which is derived from the server-sent PDU dataLen (response->cbRequested = response->common.dataLen - 4) with no validation or correlation to the original requested size. The only size comparison (req_fsize < cb at wf_cliprdr.c:256) runs after the C... | Attacker's RDP server advertises CFSTR_FILEDESCRIPTORW / CFSTR_FILECONTENTS on the shared clipboard
Victim presses Ctrl+V in Explorer; Explorer obtains the IStream from FreeRDP's IDataObject and calls IStream::Read(pv, 0x1000, &read)
FreeRDP sends a FILECONTENTS_RANGE request for 0x1000 bytes
Server replies with a CB_F... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-D5W3VWPN.
Reference:
ANT-2026-D5W3VWPN
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-D5W3VWPN: Windows clipboard stream read ignores caller buffer size
The Windows FreeRDP client's IStream::Read implementation for remote clipboard files (CliprdrStream_Read, wf_cliprdr.c:249) calls CopyMemory(pv, clipboard->req_fdata, clipboard->req_fsize) where req_fsize is taken directly from the server's CLI... | Ada Logics | true positive | diff --git a/client/Windows/wf_cliprdr.c b/client/Windows/wf_cliprdr.c
index 70895ba3999c..c0a6feea6f3d 100644
--- a/client/Windows/wf_cliprdr.c
+++ b/client/Windows/wf_cliprdr.c
@@ -225,25 +225,27 @@ static ULONG STDMETHODCALLTYPE CliprdrStream_Release(IStream* This)
static HRESULT STDMETHODCALLTYPE CliprdrStream_Read... | # ANT-2026-D5W3VWPN: ANT-2026-D5W3VWPN · freerdp/freerdp
**Project:** freerdp/freerdp | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-68579, GHSA-m37j-jcr2-8gcc
## Vulnerability Summary
The Windo... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-D5W3VWPN · freerdp/freerdp</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-04-02 | 2026-07-22 | 94f4c703ec61699c8fd0ad4be74e234d085309ee2bb5837ca53b81cda8e86e1c3929d5ff789e4decaa75dca0af0433f6ba2a82a3f0d4299ddb8fd529d6f8a703 | 668 | 365 | 1,009 | 7,077 | 1,374 | |
ANT-2026-EFRBDRNP | https://red.anthropic.com/2026/cvd/findings/ANT-2026-EFRBDRNP | supabase/supabase | open-redirect | low | low | - | - | Claude Mythos Preview | [] | [] | apps/studio/components/interfaces/Organization/NewOrg/NewOrgForm.tsx:303 | static analysis — not yet dynamically reproduced | ANT-2026-EFRBDRNP: Unvalidated returnTo redirect after organisation creation | In Supabase Studio's NewOrgForm component, after a user successfully creates an organisation the code readsreturnTofromrouter.queryand callsrouter.push(returnTo)with no validation. Because Next.jsrouter.pushaccepts absolute URLs and performs a full-page navigation for external origins, an attacker who gets an authentic... | The root cause is a missing allow-list / relative-path check on the user-controlled
returnTo
value before it is handed to
router.push
.
router.push
will happily navigate to an absolute external URL, so any value the attacker places in the query string becomes the post-action destination. | Attacker crafts a URL to the legitimate Studio new-org page with
?returnTo=https://evil.tld/dashboard
.
Attacker distributes the link (e.g. in a community channel) as a helpful quick-start link.
Victim authenticates (if needed) and submits the new-organisation form on the real dashboard.
On success,
router.push(returnT... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-EFRBDRNP.
Reference:
ANT-2026-EFRBDRNP
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-EFRBDRNP: Unvalidated returnTo redirect after organisation creation
In Supabase Studio's NewOrgForm component, after a user successfully creates an organisation the code reads
returnTo
from
router.query
and calls
router.push(returnTo)
with no validation. Because Next.js
router.push
accepts absolute URLs and pe... | diff --git a/apps/studio/components/interfaces/Organization/NewOrg/NewOrgForm.tsx b/apps/studio/components/interfaces/Organization/NewOrg/NewOrgForm.tsx
index dd67eda9d45ff..d88e6280a1936 100644
--- a/apps/studio/components/interfaces/Organization/NewOrg/NewOrgForm.tsx
+++ b/apps/studio/components/interfaces/Organizati... | # ANT-2026-EFRBDRNP: ANT-2026-EFRBDRNP · supabase/supabase
**Project:** supabase/supabase | **Bug Class:** open-redirect
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** -
## Vulnerability Summary
In Supabase Studio's NewOrgForm component, after a user successfully creat... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-EFRBDRNP · supabase/supabase</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-05-10 | 2026-05-18 | 9c08f381eb7b115269163418ec693ce3fdd7c32e96993ae2429967b16ed4d93f4451bfaf7c9fb7f659b486dbb11d9eae68d20cc82ff45113bef8714e6c5e1f17 | 509 | 285 | 734 | 4,505 | 1,019 | |||
ANT-2026-09SNWQBT | https://red.anthropic.com/2026/cvd/findings/ANT-2026-09SNWQBT | libredwg | use-after-free | critical | critical | critical | - | Claude Mythos Preview | [] | [] | ANT-2026-09SNWQBT: Use-after-free in libredwg | In LibreDWG's in_json.c, the EED (Extended Entity Data) parser assigns a local pointerdata = obj->eed[i].dataand then, in thecase 3branch, callseed_need_size()which mayreallocand moveeed[i].data. The return value ofeed_need_sizeis ignored anddatais not refreshed, so the subsequent storedata->u.eed_3.layer = json_long(.... | ASAN reports a heap-use-after-free WRITE at 0x5020000000f1. Root cause:
eed_need_size
performs
realloc
on
eed[i].data
(in_json.c:1494), potentially freeing the old allocation; the caller's local
data
pointer still references the freed block, and line 1649 dereferences it for a write. This is a classic stale-pointer-aft... | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-09SNWQBT.
Reference:
ANT-2026-09SNWQBT
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-09SNWQBT: Use-after-free in libredwg
In LibreDWG's in_json.c, the EED (Extended Entity Data) parser assigns a local pointer
data = obj->eed[i].data
and then, in the
case 3
branch, calls
eed_need_size()
which may
realloc
and move
eed[i].data
. The return value of
eed_need_size
is ignored and
data
is not refresh... | Ada Logics | true positive | # ANT-2026-09SNWQBT: ANT-2026-09SNWQBT · libredwg
**Project:** libredwg | **Bug Class:** use-after-free
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
## Vulnerability Summary
In LibreDWG's in_json.c, the EED (Extended Entity Data) parser assigns a local pointe... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-09SNWQBT · libredwg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==... | fixed | true | 2026-03-24 | 2026-05-07 | 1bcd96b33eaaaac19a4303cf040e6ff1e0dc4aa4c257462d65bbcf90deffd3f5f75bb7e596b1d20e58e246a8e50e9cecbba2d2ad07ebad86ab55751fc8e2b655 | 581 | 0 | 556 | 3,750 | 556 | ||||
ANT-2026-QXNF2N9K | https://red.anthropic.com/2026/cvd/findings/ANT-2026-QXNF2N9K | rocketchat/rocket.chat | auth-bypass | high | high | high | high | Claude Mythos Preview | [
"CVE-2026-48929"
] | [] | 7b641d319bab2cd9 | apps/meteor/app/lib/server/functions/deleteMessage.ts:13 | static analysis — not yet dynamically reproduced | ANT-2026-QXNF2N9K: Unauthenticated Arbitrary File Deletion viadeleteFileMessageMeteor Method | A completely unauthenticated attacker can permanently delete any file attachment uploaded to any Rocket.Chat room — including files in private channels, direct messages, and admin-only rooms — by invoking thedeleteFileMessageMeteor method through the/api/v1/method.callAnon/:methodREST endpoint. | Line 23's compound condition
if (msg && userId)
is a fail-open guard: when userId is null (anonymous invocation), the permission-validating branch is skipped and line 27 calls FileUpload.deleteById(fileID) directly, which performs no owner or room ACL check. The method.callAnon route (misc.ts:534-576) has authRequired:... | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-QXNF2N9K.
Reference:
ANT-2026-QXNF2N9K
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-QXNF2N9K: Unauthenticated Arbitrary File Deletion via
deleteFileMessage
Meteor Method
A completely unauthenticated attacker can permanently delete any file attachment uploaded to any Rocket.Chat room — including files in private channels, direct messages, and admin-only rooms — by invoking the
deleteFileMessag... | Ophion Security | true positive | # ANT-2026-QXNF2N9K: ANT-2026-QXNF2N9K · rocketchat/rocket.chat
**Project:** rocketchat/rocket.chat | **Bug Class:** auth-bypass
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-48929
## Vulnerability Summary
A completely unauthent... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-QXNF2N9K · rocketchat/rocket.chat</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_... | fixed | true | 2026-03-30 | 2026-04-25 | 7f41196694c65ea6357c1f9c2b8ccd820fe8ebe3738c83fcf418fafc8335eebe0059f820e31e58377599b8af68aa3097f53780f7714fe1a60401ad59fc28175b | 487 | 0 | 404 | 3,835 | 404 | |
ANT-2026-9R51NPJC | https://red.anthropic.com/2026/cvd/findings/ANT-2026-9R51NPJC | c-blosc2 | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | static analysis — not yet dynamically reproduced | ANT-2026-9R51NPJC: Heap buffer overflow in NDLZ8 triple-match decompression due to unchecked row index | Heap buffer overflow in the NDLZ8 triple-match decompression path caused by an unchecked row index. | During NDLZ8 decompression, the triple-match code path uses a row index without validating it against buffer bounds, resulting in out-of-bounds heap access. | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-9R51NPJC.
Reference:
ANT-2026-9R51NPJC
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-9R51NPJC: Heap buffer overflow in NDLZ8 triple-match decompression due to unchecked row index
Heap buffer overflow in the NDLZ8 triple-match decompression path caused by an unchecked row index.
Target
Project:
c-blosc2
Discovery:
static analysis — not yet dynamically reproduced
Technical Details
During NDLZ8 d... | Trail of Bits | true positive | # ANT-2026-9R51NPJC: ANT-2026-9R51NPJC · c-blosc2
**Project:** c-blosc2 | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
Heap buffer overflow in the NDLZ8 triple-match decompression path caused by an unche... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-9R51NPJC · c-blosc2</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==... | fixed | true | 2026-03-29 | 2026-04-09 | 90f1ff0a499f1395647c64f99a887b3ed3590bd3ea85d32bcc8c587c5ee7fb77cee7f783acf956258d1c497f47c8b9beb261a3eb00329bc73939cb4f7b8c6e40 | 252 | 0 | 241 | 2,566 | 241 | |||
ANT-2026-203E7E95 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-203E7E95 | twigphp/twig | auth-bypass | high | high | high | high | Claude Mythos Preview | [
"CVE-2026-46639"
] | [
"GHSA-mm6w-gr99-p3jj"
] | src/Node/Expression/Binary/ObjectDestructuringSetBinary.php:67 | static analysis — not yet dynamically reproduced | ANT-2026-203E7E95: Sandbox bypass via object-destructuring assignment | In Twig's ObjectDestructuringSetBinary::compile() (ObjectDestructuringSetBinary.php:67), the compiled call to CoreExtension::getAttribute() passes the 9th argument $sandboxed as a literalfalseinstead of checking for SandboxExtension as the normal GetAttrExpression path does. This causes the checkPropertyAllowed and che... | The root cause is a hard-coded
false
for the $sandboxed positional argument in the getAttribute() call emitted by ObjectDestructuringSetBinary::compile(), whereas the correct behavior (as in GetAttrExpression.php:146) is to emit
$env->hasExtension(SandboxExtension::class)
. With $sandboxed=false, CoreExtension::getAttr... | Attacker authors a template using the core
=
infix operator with object-destructuring syntax inside a
{{ ... }}
expression, e.g.
{{ ({password: p} = user) ? '' }}{{ p }}
.
Twig compiles the destructuring node via ObjectDestructuringSetBinary::compile(), emitting CoreExtension::getAttribute(..., ANY_CALL, false, false, ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-203E7E95.
Reference:
ANT-2026-203E7E95
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-203E7E95: Sandbox bypass via object-destructuring assignment
In Twig's ObjectDestructuringSetBinary::compile() (ObjectDestructuringSetBinary.php:67), the compiled call to CoreExtension::getAttribute() passes the 9th argument $sandboxed as a literal
false
instead of checking for SandboxExtension as the normal G... | Anvil Security | true positive | diff --git a/src/Node/Expression/Binary/ObjectDestructuringSetBinary.php b/src/Node/Expression/Binary/ObjectDestructuringSetBinary.php
index b47c50fe896..8c5df6a8028 100644
--- a/src/Node/Expression/Binary/ObjectDestructuringSetBinary.php
+++ b/src/Node/Expression/Binary/ObjectDestructuringSetBinary.php
@@ -13,6 +13,7 ... | # ANT-2026-203E7E95: ANT-2026-203E7E95 · twigphp/twig
**Project:** twigphp/twig | **Bug Class:** auth-bypass
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-46639, GHSA-mm6w-gr99-p3jj
## Vulnerability Summary
In Twig's ObjectDestr... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-203E7E95 · twigphp/twig</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if... | fixed | true | 2026-04-19 | 2026-05-19 | 699e1b73d73a9a017b40c501f94100bad5af00bad49138a465139357628fd2011ed4e03bf327e6d8f77674936eddec6f58ade4ccacd0aceb164b14b22623fc1e | 702 | 965 | 1,635 | 7,019 | 2,600 | |
ANT-2026-9VJ9JJXQ | https://red.anthropic.com/2026/cvd/findings/ANT-2026-9VJ9JJXQ | junrar | path-traversal | medium | high | - | medium | Claude Mythos Preview | [] | [
"GHSA-j273-m5qq-6825"
] | static analysis — not yet dynamically reproduced | ANT-2026-9VJ9JJXQ: Arbitrary file write due to backslash path traversal | Arbitrary file write due to backslash path traversal. | Path sanitization fails to account for backslash (
\
) as a directory separator, allowing traversal sequences to bypass checks and write files to arbitrary locations. | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-9VJ9JJXQ.
Reference:
ANT-2026-9VJ9JJXQ
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-9VJ9JJXQ: Arbitrary file write due to backslash path traversal
Arbitrary file write due to backslash path traversal.
Target
Project:
junrar
Discovery:
static analysis — not yet dynamically reproduced
Technical Details
Path sanitization fails to account for backslash (
\
) as a directory separator, allowing tra... | # ANT-2026-9VJ9JJXQ: ANT-2026-9VJ9JJXQ · junrar
**Project:** junrar | **Bug Class:** path-traversal
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** GHSA-j273-m5qq-6825
## Vulnerability Summary
Arbitrary file write due to backslash path t... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-9VJ9JJXQ · junrar</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="... | fixed | true | 2026-03-29 | 2026-05-08 | 13bbdaec20acded7c4956102a40ff8d229d80f0392e67a98291fdb9596eb048217b4402ddd65a0d4ac1ca6f95eea4854a0fba28e33811baddae7e5857dcbdb1f | 234 | 0 | 212 | 2,520 | 212 | |||||
ANT-2026-VN61PHA0 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-VN61PHA0 | go-gitea/gitea | idor | medium | high | high | medium | Claude Mythos Preview | [
"CVE-2026-58435"
] | [
"GHSA-rh79-75qm-gwjr"
] | cb95c8100fab6c96 | serv.go:275 | static analysis — not yet dynamically reproduced | ANT-2026-VN61PHA0: Gitea LFS Deploy-Key Privilege Escalation — Cross-Repository Data Exfiltration | Gitea's LFS server (services/lfs/server.go) blindly trusts theUserIDembedded in LFS JWT tokens and uses it asctx.Doerforcross-repositoryprivilege decisions inLFSObjectAccessible(). When combined with the fact thatrouters/private/serv.gosetsUserID = repo.OwnerIDfordeploy keys, a holder of a write-access deploy key onany... | The root cause is a trust-boundary mismatch: serv.go treats the JWT UserID as a cosmetic attribution label (setting it to repo.OwnerID for deploy keys at line 275), while server.go treats it as the authenticated principal for authorization decisions. The JWT correctly pins RepoID (checked at line 609), but LFSObjectAcc... | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-VN61PHA0.
Reference:
ANT-2026-VN61PHA0
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-VN61PHA0: Gitea LFS Deploy-Key Privilege Escalation — Cross-Repository Data Exfiltration
Gitea's LFS server (
services/lfs/server.go
) blindly trusts the
UserID
embedded in LFS JWT tokens and uses it as
ctx.Doer
for
cross-repository
privilege decisions in
LFSObjectAccessible()
. When combined with the fact tha... | Doyensec | true positive | diff --git a/services/lfs/server.go b/services/lfs/server.go
index 6340b06252141..8c7de2ccb655b 100644
--- a/services/lfs/server.go
+++ b/services/lfs/server.go
@@ -254,6 +254,17 @@ func BatchHandler(ctx *context.Context) {
var responseObject *lfs_module.ObjectResponse
if isUpload {
+ if exists && meta == nil {
+ ... | # ANT-2026-VN61PHA0: ANT-2026-VN61PHA0 · go-gitea/gitea
**Project:** go-gitea/gitea | **Bug Class:** idor
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-58435, GHSA-rh79-75qm-gwjr
## Vulnerability Summary
Gitea's LFS server (se... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-VN61PHA0 · go-gitea/gitea</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");... | fixed | true | 2026-03-30 | 2026-05-07 | 792fb8eabe7a87b60f3e2d0dd223112d1c98a3a08735d4fed6c05796f6021939aab5dbf05b80c0a0dbbf9e3fb4d7dff530b824f32a837f35d8c97760ac460be9 | 506 | 1,424 | 1,915 | 13,080 | 3,339 |
ANT-2026-2BX2DMM1 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-2BX2DMM1 | opensc | stack-buffer-overflow | medium | medium | medium | - | Claude Mythos Preview | [] | [] | rtecp_cipher() | static analysis — not yet dynamically reproduced | ANT-2026-2BX2DMM1: Stack buffer overflow in rtecp_cipher APDU response handling via unbounded apdu.resplen copy | rtecp_cipher copies APDU response data into a fixed-size stack buffer using apdu.resplen without bounds checking, allowing a stack buffer overflow. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-2BX2DMM1.
Reference:
ANT-2026-2BX2DMM1
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-2BX2DMM1: Stack buffer overflow in rtecp_cipher APDU response handling via unbounded apdu.resplen copy
rtecp_cipher copies APDU response data into a fixed-size stack buffer using apdu.resplen without bounds checking, allowing a stack buffer overflow.
Target
Project:
opensc
Location:
rtecp_cipher()
Discovery:
s... | Trail of Bits | true positive | # ANT-2026-2BX2DMM1: ANT-2026-2BX2DMM1 · opensc
**Project:** opensc | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
rtecp_cipher copies APDU response data into a fixed-size stack buffer using apdu.resp... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-2BX2DMM1 · opensc</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="... | fixed | true | 2026-03-29 | 2026-04-09 | 8d59251a9862d2c410084cd3923283b66b56c6c45e259e90389130fad97fe4ad80616acfaca603ef789a2c1b3f3ae517f471e47864baacd766e61f6ebc4c86f0 | 224 | 0 | 210 | 2,457 | 210 | |||
ANT-2026-TNDDD6NW | https://red.anthropic.com/2026/cvd/findings/ANT-2026-TNDDD6NW | ffmpeg/ffmpeg | stack-buffer-overflow | high | high | - | - | [] | [] | parse_MP4ESDescrTag() at libavformat/mpegts.c:1570; called from pmt_cb() at mpegts.c:2616 | ANT-2026-TNDDD6NW: Stack buffer overflow in mpegts.c pmt_cb via multiple IOD | The MPEG-TS PMT parser in libavformat/mpegts.c allocates a fixed 16-entry (1152-byte) Mp4Descr array on the stack and, for each IOD_DESCRIPTOR in the program_info loop, calls mp4_read_iods() with a base pointer offset by the accumulated count but a constant limit of MAX_MP4_DESCR_COUNT (16). mp4_read_iods()/init_MP4Des... | ASAN: "stack-buffer-overflow WRITE of size 4 at 0x73054bb01b60" in parse_MP4ESDescrTag (mpegts.c:1570). The root cause is that pmt_cb() passes
mp4_descr + mp4_descr_count
as the destination but still passes the full
MAX_MP4_DESCR_COUNT
as the limit, and mp4_read_iods() resets its internal counter to 0 and later overwri... | Craft an MPEG-TS stream with a PMT whose program_info loop contains two IOD_DESCRIPTOR entries.
Populate each IOD with 16 ESDescr entries (MAX_MP4_DESCR_COUNT).
Deliver the file to the target (e.g. upload to a transcoding service, or get a user to run ffprobe/ffmpeg on it).
avformat_open_input() parses the PMT; the fir... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-TNDDD6NW.
Reference:
ANT-2026-TNDDD6NW
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-TNDDD6NW: Stack buffer overflow in mpegts.c pmt_cb via multiple IOD
The MPEG-TS PMT parser in libavformat/mpegts.c allocates a fixed 16-entry (1152-byte) Mp4Descr array on the stack and, for each IOD_DESCRIPTOR in the program_info loop, calls mp4_read_iods() with a base pointer offset by the accumulated count ... | diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index bfbdbf5b19ecd..4b326d309b490 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1703,7 +1703,7 @@ static int mp4_read_iods(AVFormatContext *s, const uint8_t *buf, unsigned size,
ret = parse_mp4_descr(&d, avio_tell(&d.pb.pub), size, MP4IODescrT... | # ANT-2026-TNDDD6NW: ANT-2026-TNDDD6NW · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** stack-buffer-overflow
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
The MPEG-TS PMT parser in libavformat/mpegts.c allocates a fixed 16-entry (1152-byte) Mp4Descr... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-TNDDD6NW · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-15 | 2026-03-15 | 1698abbbbb54be9a701346efecbae99f089ad37494c6efe9e4b5a6cba6dfa9c4a944cefeffb2e5aa3c4062b59a43bac96e496d8c2b07e7adee79652d48c85af5 | 965 | 294 | 1,090 | 9,458 | 1,384 | |||||
ANT-2026-573F8CSS | https://red.anthropic.com/2026/cvd/findings/ANT-2026-573F8CSS | cesnet/libyang | stack-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [
"GHSA-44h9-v855-6rj3"
] | src/plugins_types/integer.c:70 | static analysis — not yet dynamically reproduced | ANT-2026-573F8CSS: Stack buffer overflow storing LYB integer values | In libyang's built-in integer type plugin, lyplg_type_store_int() and lyplg_type_store_uint() declare an 8-byte stack local (int64_t/uint64_t num) and, for LY_VALUE_LYB input, call memcpy(&num, value, value_size). Because all eight int/uint types register .lyb_size = lyplg_type_lyb_size_variable_bits, lyplg_type_check_... | For LYB input with VARIABLE_BITS sizing, lyplg_type_check_value_size() (plugins_types.c:564-588) neither hits the FIXED branch nor the %8 branch and only checks BITS2BYTES > UINT32_MAX, so the attacker-supplied size passes through unchanged. integer.c:70/317 then does memcpy(&num, value, value_size) into an 8-byte stac... | Craft an LYB instance document containing a leaf of any built-in YANG integer type (int8..int64/uint8..uint64).
Set the leaf's variable-size prefix to a large value (e.g. 2048 bits = 256 bytes) and append 256 bytes of ROP/shellcode payload.
Deliver the document to the victim (sysrepo datastore file, yanglint input, /im... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-573F8CSS.
Reference:
ANT-2026-573F8CSS
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-573F8CSS: Stack buffer overflow storing LYB integer values
In libyang's built-in integer type plugin, lyplg_type_store_int() and lyplg_type_store_uint() declare an 8-byte stack local (int64_t/uint64_t num) and, for LY_VALUE_LYB input, call memcpy(&num, value, value_size). Because all eight int/uint types regis... | Ada Logics | true positive | # ANT-2026-573F8CSS: ANT-2026-573F8CSS · cesnet/libyang
**Project:** cesnet/libyang | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** GHSA-44h9-v855-6rj3
## Vulnerability Summary
In libyang's built-in inte... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-573F8CSS · cesnet/libyang</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");... | fixed | true | 2026-04-02 | 2026-07-22 | c22eedcdd22e59927b0d2b2b9ef9126022be8d303afe3192f0994fe7ed95547c918973f88184de661c1e6665ca9be56301f02f4c1cdaaca0677204f48d119698 | 686 | 0 | 666 | 9,839 | 666 | ||
ANT-2026-66X46XSC | https://red.anthropic.com/2026/cvd/findings/ANT-2026-66X46XSC | supabase/supabase | other | low | low | - | - | Claude Mythos Preview | [] | [] | apps/studio/next.config.ts:520 | static analysis — not yet dynamically reproduced | ANT-2026-66X46XSC: X-Content-Type-Options header set to invalid value | The Next.js headers configuration for the Supabase Studio dashboard sets X-Content-Type-Options to 'no-sniff'. Per the Fetch Standard the only valid value is 'nosniff' (no hyphen), so browsers ignore the header entirely and the intended MIME-sniffing protection is never applied. In self-hosted mode the CSP is minimal (... | The header value contains a typo: 'no-sniff' instead of 'nosniff'. Because the Fetch Standard recognizes only the exact token 'nosniff', any other value is ignored and the browser falls back to default MIME-sniffing behavior, defeating the developer's clear intent. | Identify an endpoint on the Studio origin that reflects or serves attacker-controlled bytes with a weak/missing Content-Type (e.g., proxied download or uploaded attachment).
Deliver content containing embedded script via that endpoint.
Victim's browser, lacking a valid nosniff directive, MIME-sniffs the response as tex... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-66X46XSC.
Reference:
ANT-2026-66X46XSC
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-66X46XSC: X-Content-Type-Options header set to invalid value
The Next.js headers configuration for the Supabase Studio dashboard sets X-Content-Type-Options to 'no-sniff'. Per the Fetch Standard the only valid value is 'nosniff' (no hyphen), so browsers ignore the header entirely and the intended MIME-sniffing... | diff --git a/apps/studio/TANSTACK_MIGRATION.md b/apps/studio/TANSTACK_MIGRATION.md
index 955909985900e..728290838b28c 100644
--- a/apps/studio/TANSTACK_MIGRATION.md
+++ b/apps/studio/TANSTACK_MIGRATION.md
@@ -494,6 +494,80 @@ Keep this plugin even after migration — it's not a Next-related shim,
it's general protection ... | # ANT-2026-66X46XSC: ANT-2026-66X46XSC · supabase/supabase
**Project:** supabase/supabase | **Bug Class:** other
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** -
## Vulnerability Summary
The Next.js headers configuration for the Supabase Studio dashboard sets X-Content... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-66X46XSC · supabase/supabase</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-05-10 | 2026-05-18 | 9524cd58959ec400250eeb15be404cabba6063cc1dc1c61120e7c78dab88321169f2ae5568e13a5728c3ca4a5e4eb07ca77467c1a2ffcef82ed5abec4f18e32c | 467 | 2,232 | 2,640 | 7,412 | 4,872 | |||
ANT-2026-HRZEDXBB | https://red.anthropic.com/2026/cvd/findings/ANT-2026-HRZEDXBB | artifexsoftware/ghostpdl | stack-buffer-overflow | critical | critical | critical | - | Claude Mythos Preview | [] | [] | pdf/pdf_func.c:pdfi_build_sub_function (crash in base/gsfunc0.c fn_gets_8) | ANT-2026-HRZEDXBB: Stack-buffer-overflow in ghostscript | In Ghostscript's Sampled Function evaluator (gsfunc0.c), fn_interpolate_linear allocates a stack arrayuint sdata[max_Sd_n]with max_Sd_n = 64 and passes it to fn_gets_8, which writesnuint values into it. The value ofnis taken directly from the PDF Function dictionary's /Range array length and is only checked for n > 0 i... | ASAN: stack-buffer-overflow WRITE of size 4 in fn_gets_8, overflowing the 256-byte (64 × uint)
sdata
stack object declared in fn_interpolate_linear. Root cause: the output-dimension count
n
is derived from the user-supplied /Range array and fn_check_mnDR only enforces n > 0, so any n > 64 overruns the fixed stack buffe... | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-HRZEDXBB.
Reference:
ANT-2026-HRZEDXBB
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-HRZEDXBB: Stack-buffer-overflow in ghostscript
In Ghostscript's Sampled Function evaluator (gsfunc0.c), fn_interpolate_linear allocates a stack array
uint sdata[max_Sd_n]
with max_Sd_n = 64 and passes it to fn_gets_8, which writes
n
uint values into it. The value of
n
is taken directly from the PDF Function di... | Ada Logics | true positive | # ANT-2026-HRZEDXBB: ANT-2026-HRZEDXBB · artifexsoftware/ghostpdl
**Project:** artifexsoftware/ghostpdl | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
## Vulnerability Summary
In Ghostscript's Sampled Function evaluator (gs... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-HRZEDXBB · artifexsoftware/ghostpdl</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cv... | fixed | true | 2026-03-24 | 2026-05-07 | 516b721dac9fd428e9fa99e9bca6317651eb49ba8d50bf8b49d35542a468af494628446a2284a1745b91a48e1bf4eec7523c9a8a0b7c64698ed15e9c2bc1f59f | 758 | 0 | 697 | 2,898 | 697 | |||
ANT-2026-3SEPW083 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-3SEPW083 | ncurses | stack-buffer-overflow | high | high | high | - | an unreleased Anthropic model | [] | [] | ncurses/base/lib_mouse.c:1249 | ANT-2026-3SEPW083: Stack buffer overflow in SGR mouse response parser | In ncurses' SGR-1006 mouse parser (lib_mouse.c), read_SGR() stores parsed parameters into result->params[MAX_PARAMS] (MAX_PARAMS=9) but advances the indexnowon every semicolon and digit group with no check against MAX_PARAMS; only the 80-byte kbuf limits input length, permittingnowto reach ~76. A sequence like ESC [ < ... | Built a minimal curses program (initscr/keypad/mousemask/getch) under TERM=mouse1006 (XM contains '1006', kmous=\E[<). Fed stdin '\E[<;;;;...(60x);1234567890M'. read_SGR() at lib_mouse.c:1249 increments 'now' once per semicolon with no MAX_PARAMS bound, then writes result->params[60]. UBSAN reports 'index 60 out of bou... | Create a pty pair and spawn the target curses program on the slave with TERM=xterm-1006.
Let the program initialize curses and call mousemask(), which enables SGR-1006 mouse mode via the XM capability.
From the pty master, write: \x1b[< followed by ~60-70 semicolons, then attacker-chosen digits, then 'M' (e.g., \x1b[<;... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-3SEPW083.
Reference:
ANT-2026-3SEPW083
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-3SEPW083: Stack buffer overflow in SGR mouse response parser
In ncurses' SGR-1006 mouse parser (lib_mouse.c), read_SGR() stores parsed parameters into result->params[MAX_PARAMS] (MAX_PARAMS=9) but advances the index
now
on every semicolon and digit group with no check against MAX_PARAMS; only the 80-byte kbuf ... | Ada Logics | true positive | # ANT-2026-3SEPW083: ANT-2026-3SEPW083 · ncurses
**Project:** ncurses | **Bug Class:** stack-buffer-overflow
**Attributed Model:** an unreleased Anthropic model | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
In ncurses' SGR-1006 mouse parser (lib_mouse.c), read_SGR() stores parsed par... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-3SEPW083 · ncurses</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t===... | fixed | true | 2026-04-09 | 2026-04-23 | 6c64a707f8b3af9b99108c07e688e3a615414a3ba738c64097b2dbaa5b1ab401d8d2c4e1bb5cf1045da255c67374f598d15de102a8a60cc1e168bed82840059d | 1,670 | 0 | 1,628 | 5,938 | 1,628 | |||
ANT-2026-3M3723P3 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-3M3723P3 | binutils | heap-buffer-overflow | medium | medium | medium | - | Claude Mythos Preview | [] | [] | static analysis — not yet dynamically reproduced | ANT-2026-3M3723P3: Heap buffer overflow in FR30 ELF relocation processing via missing bounds check | A missing bounds check in FR30 ELF relocation processing allows a heap buffer overflow. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-3M3723P3.
Reference:
ANT-2026-3M3723P3
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-3M3723P3: Heap buffer overflow in FR30 ELF relocation processing via missing bounds check
A missing bounds check in FR30 ELF relocation processing allows a heap buffer overflow.
Target
Project:
binutils
Discovery:
static analysis — not yet dynamically reproduced
Reproduction
This finding was identified by stat... | Trail of Bits | true positive | # ANT-2026-3M3723P3: ANT-2026-3M3723P3 · binutils
**Project:** binutils | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** -
## Vulnerability Summary
A missing bounds check in FR30 ELF relocation processing allows a heap buffer over... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-3M3723P3 · binutils</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==... | fixed | true | 2026-03-29 | 2026-04-09 | 42cd969d4865e041562a8d957736ff0cc183028afa276fe2c00bacc176f9688290161509560654ac2dd9dfd2336ef819e410ac441f8702117e5e99f8228b3bb6 | 197 | 0 | 185 | 2,342 | 185 | ||||
ANT-2026-DYWJSTZZ | https://red.anthropic.com/2026/cvd/findings/ANT-2026-DYWJSTZZ | faad2 | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | static analysis — not yet dynamically reproduced | ANT-2026-DYWJSTZZ: Heap buffer overflow in SBR QMF synthesis due to stale buffer allocation after channel pair reconstruction | A heap buffer overflow occurs in the SBR QMF synthesis stage because a previously allocated buffer is reused with stale sizing after channel pair reconstruction. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-DYWJSTZZ.
Reference:
ANT-2026-DYWJSTZZ
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-DYWJSTZZ: Heap buffer overflow in SBR QMF synthesis due to stale buffer allocation after channel pair reconstruction
A heap buffer overflow occurs in the SBR QMF synthesis stage because a previously allocated buffer is reused with stale sizing after channel pair reconstruction.
Target
Project:
faad2
Discovery:... | Trail of Bits | true positive | # ANT-2026-DYWJSTZZ: ANT-2026-DYWJSTZZ · faad2
**Project:** faad2 | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
A heap buffer overflow occurs in the SBR QMF synthesis stage because a previously allocate... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-DYWJSTZZ · faad2</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="l... | fixed | true | 2026-03-29 | 2026-08-13 | afe700e84132d4d6a61440c20d21d9b65089a3a2b64c1d1f37ef2d0599e01e6fb4073909421fa3582dbd4d86a957327f3d2d2e3fd23f653b11697a542c4874c7 | 209 | 0 | 195 | 2,576 | 195 | ||||
ANT-2026-KC1Y51NF | https://red.anthropic.com/2026/cvd/findings/ANT-2026-KC1Y51NF | openmeterio/openmeter | sql-injection | medium | high | high | medium | Claude Mythos Preview | [
"CVE-2026-8462"
] | [
"GHSA-wc3v-3457-c8cm"
] | openmeter/streaming/clickhouse/utils_query.go:15 | static analysis — not yet dynamically reproduced | ANT-2026-KC1Y51NF: SQL injection in ClickHouse JSONPath validation | The meter create/update HTTP handlers validate user-suppliedvaluePropertyandgroupByJSONPaths by buildingSELECT JSON_VALUE('{}', '<path>')withfmt.Sprintfand executing it against ClickHouse. The value is passed throughsqlbuilder.Escape, which only doubles$and does not escape single quotes, so an attacker can break out of... | sqlbuilder.Escape
(huandu/go-sqlbuilder) only replaces
$
with
$$
for placeholder protection and performs no SQL string-literal escaping, so single quotes in the JSONPath terminate the literal and inject SQL. A correct escaper,
escapeJSONPathLiteral
(meter_query.go:484-509), exists and is used everywhere else but was om... | Send POST /api/v1/meters with body {"slug":"m","aggregation":"SUM","eventType":"e","valueProperty":"$.a'), throwIf((SELECT count() FROM openmeter.om_events WHERE namespace='victim-ns' AND subject='target')>0) --"}
Server builds SELECT JSON_VALUE('{}', '$.a'), throwIf(...) --') and executes it via ClickHouse.Exec
Observ... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-KC1Y51NF.
Reference:
ANT-2026-KC1Y51NF
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-KC1Y51NF: SQL injection in ClickHouse JSONPath validation
The meter create/update HTTP handlers validate user-supplied
valueProperty
and
groupBy
JSONPaths by building
SELECT JSON_VALUE('{}', '<path>')
with
fmt.Sprintf
and executing it against ClickHouse. The value is passed through
sqlbuilder.Escape
, which on... | Anvil Security | true positive | diff --git a/openmeter/streaming/clickhouse/utils_query.go b/openmeter/streaming/clickhouse/utils_query.go
index 078f7af103..35360e0e31 100644
--- a/openmeter/streaming/clickhouse/utils_query.go
+++ b/openmeter/streaming/clickhouse/utils_query.go
@@ -1,20 +1,13 @@
package clickhouse
-import (
- "fmt"
-
- "github.com/hu... | # ANT-2026-KC1Y51NF: ANT-2026-KC1Y51NF · openmeterio/openmeter
**Project:** openmeterio/openmeter | **Bug Class:** sql-injection
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-8462, GHSA-wc3v-3457-c8cm
## Vulnerability Summary
... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-KC1Y51NF · openmeterio/openmeter</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_t... | fixed | true | 2026-04-19 | 2026-05-19 | 551ef9de796cb83e2d8a460f860441abb3fd6c1559e97ca04e279fbc62694ab4688a3dc7a995d86d6eebd4b93a1b94d22afac15a2d797c4094befcd2cd1c8f5b | 563 | 433 | 966 | 5,441 | 1,399 | |
ANT-2026-M8R2AWBV | https://red.anthropic.com/2026/cvd/findings/ANT-2026-M8R2AWBV | torvalds/linux | other | high | high | - | - | Claude Mythos Preview | [] | [] | fs/smb/server/transport_rdma.c:smb_direct_prepare_negotiation (code now lives in fs/smb/smbdirect/accept.c) | static analysis — not yet dynamically reproduced | ANT-2026-M8R2AWBV: ksmbd SMB-Direct: pre-auth remote heap overflow via preferred_send_size signedness (min_t(int)) | Pre-auth remote: client negotiate with preferred_send_size=0x80000000 passes min_t(int,...) signed comparison against max_recv_size (1364), corrupting max_recv_size; recv buffers (1420-byte slab) are then posted with sge.length=0x80000000 and the next RDMA SEND overflows the slab via skb_copy_bits (KASAN slab-out-of-bo... | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-M8R2AWBV.
Reference:
ANT-2026-M8R2AWBV
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-M8R2AWBV: ksmbd SMB-Direct: pre-auth remote heap overflow via preferred_send_size signedness (min_t(int))
Pre-auth remote: client negotiate with preferred_send_size=0x80000000 passes min_t(int,...) signed comparison against max_recv_size (1364), corrupting max_recv_size; recv buffers (1420-byte slab) are then ... | diff --git a/fs/smb/server/transport_rdma.c b/fs/smb/server/transport_rdma.c
index 7c53b78b818e16..188572491d53ff 100644
--- a/fs/smb/server/transport_rdma.c
+++ b/fs/smb/server/transport_rdma.c
@@ -2540,9 +2540,9 @@ static int smb_direct_prepare(struct ksmbd_transport *t)
goto put;
req = (struct smbdirect_negotiate_re... | # ANT-2026-M8R2AWBV: ANT-2026-M8R2AWBV · torvalds/linux
**Project:** torvalds/linux | **Bug Class:** other
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
Pre-auth remote: client negotiate with preferred_send_size=0x80000000 passes min_t(int,... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-M8R2AWBV · torvalds/linux</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");... | fixed | true | 2026-02-14 | 2026-05-08 | f3582ae68368bdd56446aff04f8a0d414941d8c96f9f63af3ed3101a0f0a708c3389a00c2a47c1fb28934661fcef55df149dda930f074be8f642f548e0ec13a2 | 433 | 224 | 619 | 3,009 | 843 | ||||
ANT-2026-SB4PHA43 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-SB4PHA43 | wolfssl/wolfssl | crypto-failure | medium | high | high | medium | Claude Mythos Preview | [
"CVE-2026-5446"
] | [
"GHSA-vgv9-mv66-mpc7"
] | static analysis — not yet dynamically reproduced | ANT-2026-SB4PHA43: ARIA-GCM Nonce Reuse in TLS 1.2 Record Encryption in wolfSSL | The ARIA-GCM implementation reuses nonces when encrypting TLS 1.2 records. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-SB4PHA43.
Reference:
ANT-2026-SB4PHA43
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-SB4PHA43: ARIA-GCM Nonce Reuse in TLS 1.2 Record Encryption in wolfSSL
The ARIA-GCM implementation reuses nonces when encrypting TLS 1.2 records.
Target
Project:
wolfssl/wolfssl
Discovery:
static analysis — not yet dynamically reproduced
Reproduction
This finding was identified by static analysis and has not y... | Calif | true positive | diff --git a/src/internal.c b/src/internal.c
index 516f7ccc683..70a7f42569d 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -19714,7 +19714,9 @@ static int DoDtlsHandShakeMsg(WOLFSSL* ssl, byte* input, word32* inOutIdx,
#if (!defined(NO_PUBLIC_GCM_SET_IV) && \
((defined(HAVE_FIPS) || defined(HAVE_SELFTEST)) && \
(!... | # ANT-2026-SB4PHA43: ANT-2026-SB4PHA43 · wolfssl/wolfssl
**Project:** wolfssl/wolfssl | **Bug Class:** crypto-failure
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-5446, GHSA-vgv9-mv66-mpc7
## Vulnerability Summary
The ARIA-GC... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-SB4PHA43 · wolfssl/wolfssl</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-03-29 | 2026-05-07 | 42db4adeeadfd87fee4e773a054ec682b406867ffe8d0e9cc84b22a2c51a7726959887e1bc23098eea81effa882b38313a69a5acc6a465e8d3162b57e754ed79 | 204 | 633 | 860 | 3,649 | 1,493 | |||
ANT-2026-PJV7Z0AR | https://red.anthropic.com/2026/cvd/findings/ANT-2026-PJV7Z0AR | open62541/open62541 | integer-overflow | high | high | high | high | Claude Mythos Preview | [
"CVE-2026-63559",
"CVE-2026-65423"
] | [] | static analysis — not yet dynamically reproduced | ANT-2026-PJV7Z0AR: Integer overflow in variant dimension validation allowing wild-address write via arrayDimensions product overflow | The product of arrayDimensions overflows during variant dimension validation, leading to a wild-address write. | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-PJV7Z0AR.
Reference:
ANT-2026-PJV7Z0AR
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-PJV7Z0AR: Integer overflow in variant dimension validation allowing wild-address write via arrayDimensions product overflow
The product of arrayDimensions overflows during variant dimension validation, leading to a wild-address write.
Target
Project:
open62541/open62541
Discovery:
static analysis — not yet dyn... | Trail of Bits | true positive | # ANT-2026-PJV7Z0AR: ANT-2026-PJV7Z0AR · open62541/open62541
**Project:** open62541/open62541 | **Bug Class:** integer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-63559, CVE-2026-65423
## Vulnerability Summary
The pro... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-PJV7Z0AR · open62541/open62541</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_the... | fixed | true | 2026-03-29 | 2026-04-09 | 03bf968a7d024ab0ac6f945f14f827bdfa8fba50c910ca06cf6b2af74116597317a198657ed216efa65014c755f20e9ed5a8e2c162b139e74b5c054f55f3e198 | 203 | 0 | 215 | 2,458 | 215 | ||||
ANT-2026-0Y1VS937 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-0Y1VS937 | ffmpeg/ffmpeg | heap-buffer-overflow | high | high | - | - | [] | [] | libavcodec/h264_mb.c:561 (xchg_mb_border) | ANT-2026-0Y1VS937: Heap underflow in H.264 xchg_mb_border via slice_num/sentinel collision | In FFmpeg's H.264 decoder, slice_table (h264dec.h) is a uint16_t array memset to 0xFFFF as a 'no slice' sentinel, while slice_num = ++h->current_slice is an uncapped int. At slice 65535, slice_num == 0xFFFF, so comparisons against the never-written spare slice_table entries (one per row, mb_stride = mb_width + 1) spuri... | ASAN: 'heap-buffer-overflow ... READ of size 8 at 0x51b000008528 ... located 88 bytes before 1460-byte region' at h264_mb.c:561. ASan reports the read first, but XCHG is AV_SWAP64 ({tmp=b; b=a; a=tmp}), so a non-instrumented build unconditionally performs the paired write as well. Root cause: the 0xFFFF sentinel in a u... | Craft an H.264 picture with ~65536 slices so that ++h->current_slice reaches 0xFFFF.
Set disable_deblocking_filter_idc = 2 so the deblock_topleft check consults slice_table instead of mb_x > 0.
On the 0xFFFF-th slice, spare slice_table entries (still 0xFFFF) compare equal to slice_num; guards in h264_mb.c:532 and h264_... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-0Y1VS937.
Reference:
ANT-2026-0Y1VS937
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-0Y1VS937: Heap underflow in H.264 xchg_mb_border via slice_num/sentinel collision
In FFmpeg's H.264 decoder, slice_table (h264dec.h) is a uint16_t array memset to 0xFFFF as a 'no slice' sentinel, while slice_num = ++h->current_slice is an uncapped int. At slice 65535, slice_num == 0xFFFF, so comparisons agains... | diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c
index 69f70c90bb0de..0ce8e46c72b4a 100644
--- a/libavcodec/h264_slice.c
+++ b/libavcodec/h264_slice.c
@@ -1979,6 +1979,12 @@ static int h264_slice_init(H264Context *h, H264SliceContext *sl,
h->ps.pps->chroma_qp_index_offset[1]) +
6 * (h->ps.sps->bit_depth_l... | # ANT-2026-0Y1VS937: ANT-2026-0Y1VS937 · ffmpeg/ffmpeg
**Project:** ffmpeg/ffmpeg | **Bug Class:** heap-buffer-overflow
**Attributed Model:** | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
In FFmpeg's H.264 decoder, slice_table (h264dec.h) is a uint16_t array memset to 0xFFFF as a 'n... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-0Y1VS937 · ffmpeg/ffmpeg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-13 | 2026-03-13 | 30191b2865ea6cdce0ed85cd477c9f14778acf9fe45608732cb8541b36ddeadcab81d7356f0655b1a64a4e49fb507c6df96c8228ba43210d0c67c23a60899ee8 | 928 | 223 | 1,033 | 10,220 | 1,256 | |||||
ANT-2026-K6DHGAYS | https://red.anthropic.com/2026/cvd/findings/ANT-2026-K6DHGAYS | webkit/webkit | heap-buffer-overflow | critical | critical | critical | - | Claude Mythos Preview | [] | [] | FTLOperations.cpp:95 | ANT-2026-K6DHGAYS: Heap-buffer-overflow in FTLOperations.cpp:95 | In JavaScriptCore's FTL tier, array allocation sinking (PhantomNewArrayWithButterfly) defers materialization until OSR exit. If Object.defineProperty installs an indexed accessor on Object.prototype and triggers haveABadTime() between operationMaterializeObjectInOSR and operationPopulateObjectInOSR, the Butterfly is cr... | ASAN: heap-buffer-overflow, READ of size 8 at 0 bytes after a 16152-byte region. operationMaterializeObjectInOSR sizes and allocates the Butterfly assuming a contiguous layout, but a concurrent haveABadTime transition flips the global indexing mode so operationPopulateObjectInOSR treats the same buffer as ArrayStorage;... | Warm a target function until it is FTL-compiled with array allocation sinking (PhantomNewArrayWithButterfly).
Call Object.defineProperty on Object.prototype with an indexed accessor to trigger haveABadTime().
Force an OSR exit so operationMaterializeObjectInOSR allocates a contiguous Butterfly but operationPopulateObje... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-K6DHGAYS.
Reference:
ANT-2026-K6DHGAYS
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-K6DHGAYS: Heap-buffer-overflow in FTLOperations.cpp:95
In JavaScriptCore's FTL tier, array allocation sinking (PhantomNewArrayWithButterfly) defers materialization until OSR exit. If Object.defineProperty installs an indexed accessor on Object.prototype and triggers haveABadTime() between operationMaterializeO... | Trail of Bits | true positive | diff --git a/JSTests/stress/ftl-osr-exit-phantom-new-array-with-butterfly-having-a-bad-time.js b/JSTests/stress/ftl-osr-exit-phantom-new-array-with-butterfly-having-a-bad-time.js
new file mode 100644
index 0000000000000..2611454cf3044
--- /dev/null
+++ b/JSTests/stress/ftl-osr-exit-phantom-new-array-with-butterfly-havi... | # ANT-2026-K6DHGAYS: ANT-2026-K6DHGAYS · webkit/webkit
**Project:** webkit/webkit | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
## Vulnerability Summary
In JavaScriptCore's FTL tier, array allocation sinking (PhantomNewArra... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-K6DHGAYS · webkit/webkit</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-24 | 2026-06-09 | 7dee0cf877692adbc6077f63c1523894b696da2817b42e1e84c5d5eafe515981fbabc5677aff61519a61903f6ac395009cf9d94cc2e4241a2fa38f07defbfcdb | 777 | 1,148 | 1,931 | 6,138 | 3,079 | ||
ANT-2026-6FH6D5TF | https://red.anthropic.com/2026/cvd/findings/ANT-2026-6FH6D5TF | supabase/supabase | other | low | low | - | - | Claude Mythos Preview | [] | [] | docker/docker-compose.yml:314 | static analysis — not yet dynamically reproduced | ANT-2026-6FH6D5TF: Hardcoded Realtime tenant-credential encryption key with no override | In docker/docker-compose.yml the Realtime service sets DB_ENC_KEY to the literal string 'supabaserealtime' rather than interpolating from .env like every adjacent secret. The variable is absent from .env.example and untouched by generate-keys.sh, so users who follow the documented secret-rotation guidance still ship th... | DB_ENC_KEY is assigned a fixed literal instead of a ${VAR} reference, and no generation/override path exists in .env.example or generate-keys.sh. Because the key is public in the repository, the AES encryption applied to tenant credentials in the _realtime schema provides no confidentiality against anyone who can read ... | Obtain read access to _realtime.extensions / _realtime.tenants (backup dump, SQLi, or over-privileged role)
Extract the AES-encrypted tenant database credential fields
Decrypt them offline using the publicly-known key 'supabaserealtime'
Use the recovered Postgres superuser password to authenticate with full privileges
... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-6FH6D5TF.
Reference:
ANT-2026-6FH6D5TF
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-6FH6D5TF: Hardcoded Realtime tenant-credential encryption key with no override
In docker/docker-compose.yml the Realtime service sets DB_ENC_KEY to the literal string 'supabaserealtime' rather than interpolating from .env like every adjacent secret. The variable is absent from .env.example and untouched by gen... | diff --git a/apps/docs/content/guides/self-hosting/docker.mdx b/apps/docs/content/guides/self-hosting/docker.mdx
index aede885d84035..e029e8e261838 100644
--- a/apps/docs/content/guides/self-hosting/docker.mdx
+++ b/apps/docs/content/guides/self-hosting/docker.mdx
@@ -514,9 +514,10 @@ sh run.sh recreate
The `generate-k... | # ANT-2026-6FH6D5TF: ANT-2026-6FH6D5TF · supabase/supabase
**Project:** supabase/supabase | **Bug Class:** other
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** -
## Vulnerability Summary
In docker/docker-compose.yml the Realtime service sets DB_ENC_KEY to the literal s... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-6FH6D5TF · supabase/supabase</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-05-10 | 2026-05-18 | 132cd36bb5e09ff288a5ba66b17e85254f9313c31cee75ba2d5641ae6c4a321b72befeb5c3c42a9dcd6f5f1888aaceaf09a6c824728d8b70b9664235319103e1 | 485 | 2,200 | 2,611 | 7,021 | 4,811 | |||
ANT-2026-4PKJCSR8 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-4PKJCSR8 | osgeo/gdal | heap-buffer-overflow | high | critical | high | - | Claude Mythos Preview | [] | [] | ANT-2026-4PKJCSR8: Heap-buffer-overflow in gdal | In GDAL's bundled g2clib, specunpack() allocates the ifld buffer as ndptssizeof(g2int) and then calls gbits() to unpack Ts elements into it, where Ts is idrstmpl[8] taken directly from the GRIB2 Data Representation Section without validation. A crafted GRIB2 file using DRS template 5.51 can set Ts > ndpts, causing the ... | ASAN: heap-buffer-overflow WRITE of size 4 at 0x502000012a20 in gdal_gbits (gbits.c:74). Root cause: in specunpack() (reached via g2_unpack7 when idrsnum == 51), ifld is malloc'd for ndpts g2int elements, but the first gbits() call unpacks Ts = idrstmpl[8] elements into ifld. Ts is read from the GRIB2 file with no chec... | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-4PKJCSR8.
Reference:
ANT-2026-4PKJCSR8
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-4PKJCSR8: Heap-buffer-overflow in gdal
In GDAL's bundled g2clib, specunpack() allocates the ifld buffer as ndpts
sizeof(g2int) and then calls gbits() to unpack Ts elements into it, where Ts is idrstmpl[8] taken directly from the GRIB2 Data Representation Section without validation. A crafted GRIB2 file using D... | Ada Logics | true positive | diff --git a/frmts/grib/degrib/g2clib/specunpack.c b/frmts/grib/degrib/g2clib/specunpack.c
index da976d1e549d..eb09f1af6cc2 100644
--- a/frmts/grib/degrib/g2clib/specunpack.c
+++ b/frmts/grib/degrib/g2clib/specunpack.c
@@ -67,6 +67,13 @@ g2int specunpack(unsigned char *cpack,g2int *idrstmpl,g2int ndpts,g2int JJ,
if (id... | # ANT-2026-4PKJCSR8: ANT-2026-4PKJCSR8 · osgeo/gdal
**Project:** osgeo/gdal | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
## Vulnerability Summary
In GDAL's bundled g2clib, specunpack() allocates the ifld buffer as ndptssi... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-4PKJCSR8 · osgeo/gdal</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t... | fixed | true | 2026-03-24 | 2026-05-07 | 97ac254e71a7a9d8ccc76c07181dc668616c36c0ee2c1a31b812a1c57ec382e579db8c3b870617860b644351b8062a803d4caaf9c1c43400c6633c17122d731a | 574 | 250 | 826 | 4,208 | 1,076 | |||
ANT-2026-XBE9HJ4Y | https://red.anthropic.com/2026/cvd/findings/ANT-2026-XBE9HJ4Y | moodle/moodle | path-traversal | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-7275"
] | [] | 9a5df8d6da29571e | static analysis — not yet dynamically reproduced | ANT-2026-XBE9HJ4Y: Path Traversal → Arbitrary File Write → RCE in repository_googledocs | repository_googledocs::download_file()passes the Google Drive filename(fetched from the Google API and therefore controlled by the file owner) directly torepository::prepare_file(), which performs a naive string concatenation with no path sanitization. The resulting path is opened withfopen(..., 'w')bycurl::download_on... | Root cause is trusting the externally-supplied
name
field from the Google Drive v3 files API as a safe local path component. prepare_file() performs naive string concatenation with no '..'/'/'/null-byte stripping, and download_one() calls fopen($options['filepath'], 'w') directly, which follows traversal sequences and ... | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-XBE9HJ4Y.
Reference:
ANT-2026-XBE9HJ4Y
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-XBE9HJ4Y: Path Traversal → Arbitrary File Write → RCE in repository_googledocs
repository_googledocs::download_file()
passes the Google Drive file
name
(fetched from the Google API and therefore controlled by the file owner) directly to
repository::prepare_file()
, which performs a naive string concatenation w... | Ophion Security | true positive | # ANT-2026-XBE9HJ4Y: ANT-2026-XBE9HJ4Y · moodle/moodle
**Project:** moodle/moodle | **Bug Class:** path-traversal
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-7275
## Vulnerability Summary
repository_googledocs::download_file()pas... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-XBE9HJ4Y · moodle/moodle</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");i... | fixed | true | 2026-03-30 | 2026-04-23 | abdda0ccd741fe8be1684c7434f523327ddb872f9e7acb72e2f95f687850e08db5ae5f2c1d6df22ff433676f6dafa86f2060d13be74b09eeda5b2a0b1c897283 | 530 | 0 | 400 | 4,085 | 400 | ||
ANT-2026-0JRYQPCF | https://red.anthropic.com/2026/cvd/findings/ANT-2026-0JRYQPCF | wolfssl/wolfssl | heap-buffer-overflow | medium | high | high | medium | Claude Mythos Preview | [
"CVE-2026-5503"
] | [
"GHSA-65xm-pfx9-g5p3"
] | src/tls.c:TLSX_EchChangeSNI (and TLSX_EchRestoreSNI) | static analysis — not yet dynamically reproduced | ANT-2026-0JRYQPCF: wolfSSL ECH: heap buffer overflow in TLSX_EchChangeSNI via publicName SNI pollution | wolfSSL's TLS 1.3 Encrypted Client Hello (ECH) client code contained a heap buffer overflow, tracked as CVE-2026-5503 (GHSA-65xm-pfx9-g5p3). When a client used ECH with no Server Name Indication (SNI) configured, TLSX_EchChangeSNI() in src/tls.c attached the ECH configuration's public name as an SNI entry on the shared... | Component.
The defect is in the ECH helper pair
TLSX_EchChangeSNI()
/
TLSX_EchRestoreSNI()
in
src/tls.c
, compiled when both
WOLFSSL_TLS13
and
HAVE_ECH
are defined. These helpers run from
TLSX_GetSizeWithEch()
and
TLSX_WriteWithEch()
while the client sizes and writes its ClientHello extensions: for the outer ClientHell... | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-0JRYQPCF.
Reference:
ANT-2026-0JRYQPCF
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-0JRYQPCF: wolfSSL ECH: heap buffer overflow in TLSX_EchChangeSNI via publicName SNI pollution
wolfSSL's TLS 1.3 Encrypted Client Hello (ECH) client code contained a heap buffer overflow, tracked as CVE-2026-5503 (GHSA-65xm-pfx9-g5p3). When a client used ECH with no Server Name Indication (SNI) configured, TLSX... | Calif | true positive | diff --git a/src/tls.c b/src/tls.c
index b854b8f8cd5..09e6c921740 100644
--- a/src/tls.c
+++ b/src/tls.c
@@ -16086,11 +16086,18 @@ static int TLSX_EchChangeSNI(WOLFSSL* ssl, TLSX** pEchX,
if (serverNameX == NULL && ssl->ctx && ssl->ctx->extensions) {
serverNameX = TLSX_Find(ssl->ctx->extensions, TLSX_SERVER_NAME);
- ... | # ANT-2026-0JRYQPCF: ANT-2026-0JRYQPCF · wolfssl/wolfssl
**Project:** wolfssl/wolfssl | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-5503, GHSA-65xm-pfx9-g5p3
## Vulnerability Summary
wolfS... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-0JRYQPCF · wolfssl/wolfssl</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme")... | fixed | true | 2026-03-29 | 2026-04-05 | 5175ece3afdba9cf93587112f7601b7e22caaf48410a2cb260e59f4b801eedbaf9de7f494493b446bd9e829ce6162cd0dcf3b285879b0f82342bc38b1e3b1ac8 | 1,290 | 811 | 2,123 | 5,336 | 2,934 | |
ANT-2026-0NGQ3EZK | https://red.anthropic.com/2026/cvd/findings/ANT-2026-0NGQ3EZK | gpg/gnupg | auth-bypass | high | high | high | - | Claude Mythos Preview | [] | [] | g10/tofu.c:1489 | static analysis — not yet dynamically reproduced | ANT-2026-0NGQ3EZK: TOFU trust bypass via forged certification without signature verification | In the TOFU trust model, signed_by_utk() and cross_sigs() (g10/tofu.c) decide whether a new key is trusted by scanning certification-signature packets and comparing sig->keyid against the ultimately-trusted-key list via tdb_keyid_is_utk(). The issuer keyid is an unauthenticated subpacket copied verbatim from the import... | At tofu.c:1508, signed_by_utk() calls tdb_keyid_is_utk(sig->keyid) — a pure 64-bit keyid comparison against utk_list — on raw signature packets from the keyblock, with sig->keyid populated verbatim from the attacker-supplied SIGSUBPKT_ISSUER subpacket (parse-packet.c:2267). No check_key_signature()/check_signature_over... | Generate an attacker keypair for the target identity (e.g. alice@example.org).
Append a fabricated 0x13 certification signature packet to the attacker key's UID, setting the Issuer subpacket to the victim's ultimately-trusted key's 64-bit keyid (public information).
Distribute the crafted public key via WKD, LDAP keyse... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-0NGQ3EZK.
Reference:
ANT-2026-0NGQ3EZK
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-0NGQ3EZK: TOFU trust bypass via forged certification without signature verification
In the TOFU trust model, signed_by_utk() and cross_sigs() (g10/tofu.c) decide whether a new key is trusted by scanning certification-signature packets and comparing sig->keyid against the ultimately-trusted-key list via tdb_key... | Ada Logics | true positive | diff --git a/g10/tofu.c b/g10/tofu.c
index 740ee6475..188879de3 100644
--- a/g10/tofu.c
+++ b/g10/tofu.c
@@ -1458,14 +1458,16 @@ cross_sigs (const char *email, kbnode_t a, kbnode_t b)
return 1;
}
+
/* Return whether the key was signed by an ultimately trusted key. */
static int
-signed_by_utk (const char *email, kbnod... | # ANT-2026-0NGQ3EZK: ANT-2026-0NGQ3EZK · gpg/gnupg
**Project:** gpg/gnupg | **Bug Class:** auth-bypass
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
In the TOFU trust model, signed_by_utk() and cross_sigs() (g10/tofu.c) decide whether a new... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-0NGQ3EZK · gpg/gnupg</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t=... | fixed | true | 2026-04-02 | 2026-08-01 | 1cd2e7f9bcfcb6d052571dba39cb1dc09079ec09927ce8b83fcc186123b255c62eb8daac8f57b8c3a8dd5a3724c1471bb50e372fb03ce29300fefabd8478c684 | 801 | 885 | 1,649 | 7,126 | 2,534 | |
ANT-2026-6JWE6ZK7 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-6JWE6ZK7 | langchain-ai/deepagentsjs | other | high | high | high | - | Claude Mythos Preview | [] | [
"GHSA-h4jf-rhmw-rjfw"
] | libs/providers/node-vfs/src/sandbox.ts:346 | static analysis — not yet dynamically reproduced | ANT-2026-6JWE6ZK7: VFS sandbox executes agent commands directly on host | The VfsSandbox backend in @langchain/node-vfs is documented and advertised to the LLM as an isolated execution environment, but its execute() method simply runs/bin/bash -c <command>on the host withenv: { ...process.env }and only cwd pointed at a temp directory. There is no chroot, namespace, container, or environment ... | The root cause is that execute() provides no actual OS-level isolation: it calls bash in-process with the full host environment and filesystem accessible, contradicting the README and tool-description claims of an isolated sandbox. Additionally, #syncDirFromTemp (lines 260-278) does not reject symlinks, so even after i... | Developer deploys an agent using VfsSandbox, trusting the documented isolation claim
Attacker supplies content (e.g., a document to summarize) containing a prompt-injection payload
The agent follows the injected instruction and invokes the execute tool with an attacker-chosen shell command
VfsSandbox.execute() spawns /... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-6JWE6ZK7.
Reference:
ANT-2026-6JWE6ZK7
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-6JWE6ZK7: VFS sandbox executes agent commands directly on host
The VfsSandbox backend in @langchain/node-vfs is documented and advertised to the LLM as an isolated execution environment, but its execute() method simply runs
/bin/bash -c <command>
on the host with
env: { ...process.env }
and only cwd pointed at... | Anvil Security | true positive | diff --git a/.changeset/calm-carrots-allow.md b/.changeset/calm-carrots-allow.md
new file mode 100644
index 000000000..48200a6ba
--- /dev/null
+++ b/.changeset/calm-carrots-allow.md
@@ -0,0 +1,9 @@
+---
+"@langchain/node-vfs": minor
+---
+
+BREAKING: remove shell execution from the VFS provider
+
+`VfsBackend` now oper... | # ANT-2026-6JWE6ZK7: ANT-2026-6JWE6ZK7 · langchain-ai/deepagentsjs
**Project:** langchain-ai/deepagentsjs | **Bug Class:** other
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
**Security Advisories:** GHSA-h4jf-rhmw-rjfw
## Vulnerability Summary
The VfsSandbox backe... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-6JWE6ZK7 · langchain-ai/deepagentsjs</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("c... | fixed | true | 2026-04-19 | 2026-05-19 | 24480aa64472e6337788092694e12da5095e84b394210eb2e27a1b85e56ac3dfea4adef86abc76c67de426a8d68c5f72fc266c3945b29219bb38dbc3d509f454 | 649 | 2,061 | 2,654 | 8,558 | 4,715 | |
ANT-2026-14WRNADB | https://red.anthropic.com/2026/cvd/findings/ANT-2026-14WRNADB | torvalds/linux | use-after-free | high | high | - | - | Claude Mythos Preview | [] | [] | fs/smb/server/mgmt/tree_connect.c:__ksmbd_tree_conn_disconnect | static analysis — not yet dynamically reproduced | ANT-2026-14WRNADB: ksmbd: use-after-free of share_conf via multichannel LOGOFF race | SMB3 multichannel: SESSION_LOGOFF on connection A calls ksmbd_conn_wait_idle(conn), draining only A's request counter. In-flight requests on bound connection B still hold tree_conn references via work->tcon while __ksmbd_tree_conn_disconnect() drops the share_conf reference before checking tree_conn->refcount, freeing ... | This finding was identified by static analysis and has not yet been dynamically reproduced. A trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-14WRNADB.
Reference:
ANT-2026-14WRNADB
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-14WRNADB: ksmbd: use-after-free of share_conf via multichannel LOGOFF race
SMB3 multichannel: SESSION_LOGOFF on connection A calls ksmbd_conn_wait_idle(conn), draining only A's request counter. In-flight requests on bound connection B still hold tree_conn references via work->tcon while __ksmbd_tree_conn_disco... | diff --git a/fs/smb/server/mgmt/tree_connect.c b/fs/smb/server/mgmt/tree_connect.c
index a72d7e42a6c278..58e5b8592da46f 100644
--- a/fs/smb/server/mgmt/tree_connect.c
+++ b/fs/smb/server/mgmt/tree_connect.c
@@ -102,8 +102,10 @@ ksmbd_tree_conn_connect(struct ksmbd_work *work, const char *share_name)
void ksmbd_tree_con... | # ANT-2026-14WRNADB: ANT-2026-14WRNADB · torvalds/linux
**Project:** torvalds/linux | **Bug Class:** use-after-free
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
SMB3 multichannel: SESSION_LOGOFF on connection A calls ksmbd_conn_wait_idle(c... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-14WRNADB · torvalds/linux</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");... | fixed | true | 2026-03-29 | 2026-05-08 | 48e7eaaca18de45088a6e035e6a8abe203337609a056099f54a6d03f8d6934d666009e98e6b7468098f4f5bfd2c7c236bb4ae3847be8faefea282ffbae0919f7 | 335 | 334 | 639 | 3,147 | 973 | ||||
ANT-2026-HFGGE6HR | https://red.anthropic.com/2026/cvd/findings/ANT-2026-HFGGE6HR | asterisk/asterisk | stack-buffer-overflow | critical | critical | critical | - | Claude Mythos Preview | [
"CVE-2026-57191"
] | [
"GHSA-589g-qgf8-m6mx"
] | res/res_pjsip_pubsub.c:3889 | ANT-2026-HFGGE6HR: Stack buffer overflow in parse_simple_message_summary via unbounded sscanf %s (SIP MWI NOTIFY) | In res_pjsip_pubsub.c at line 3889, parse_simple_message_summary() uses sscanf with an unbounded %s conversion to read a field from the body of an incoming SIP NOTIFY (Event: message-summary) into a fixed-size stack buffer. The parser is reached from the network via pubsub_on_rx_notify_request → pubsub_on_rx_mwi_notify... | res_pjsip_pubsub.c:3889 parse_simple_message_summary() calls sscanf with an unbounded %s into a fixed stack buffer while parsing the body of an incoming SIP NOTIFY (Event: message-summary). A single UDP NOTIFY whose body field exceeds the buffer length writes attacker-controlled bytes (observed 901-byte WRITE) past the... | Craft a SIP NOTIFY request with Event: message-summary and a body field longer than the fixed stack buffer.
Send the NOTIFY over UDP to the target's SIP endpoint.
pubsub_on_rx_notify_request dispatches to pubsub_on_rx_mwi_notify_request, which calls parse_simple_message_summary().
sscanf with unbounded %s copies the ov... | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-HFGGE6HR.
Reference:
ANT-2026-HFGGE6HR
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-HFGGE6HR: Stack buffer overflow in parse_simple_message_summary via unbounded sscanf %s (SIP MWI NOTIFY)
In res_pjsip_pubsub.c at line 3889, parse_simple_message_summary() uses sscanf with an unbounded %s conversion to read a field from the body of an incoming SIP NOTIFY (Event: message-summary) into a fixed-s... | Trail of Bits | true positive | # ANT-2026-HFGGE6HR: ANT-2026-HFGGE6HR · asterisk/asterisk
**Project:** asterisk/asterisk | **Bug Class:** stack-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-57191, GHSA-589g-qgf8-m6mx
## Vulnerability Summary
... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-HFGGE6HR · asterisk/asterisk</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | fixed | true | 2026-04-10 | 2026-05-07 | 4af0e700ec9c669355834e3145eef3b8a700d116006ebbf92fbb1219711ed32b6b53e7c3625b7c28fe84fb31aa2e9c5adcfae86b6091f267dcff34fe0dee0386 | 533 | 0 | 499 | 4,074 | 499 | |||
ANT-2026-1ZNMP148 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-1ZNMP148 | nss | heap-buffer-overflow | high | medium | medium | high | Claude Mythos Preview | [
"CVE-2026-6772"
] | [
"GHSA-c2q7-642g-3vwr"
] | TLS extension negotiation (SSL_MAX_EXTENSIONS) | static analysis — not yet dynamically reproduced | ANT-2026-1ZNMP148: Off-by-one heap buffer overflow in TLS extension negotiation due to SSL_MAX_EXTENSIONS (22) being too small for 23 extensions | SSL_MAX_EXTENSIONS is defined as 22 but 23 TLS extensions exist, causing an off-by-one heap buffer overflow during extension negotiation. | The constant SSL_MAX_EXTENSIONS is set to 22, one less than the actual number of supported TLS extensions (23). A buffer sized by this constant overflows by one element when all extensions are processed during negotiation. | This finding was identified by static analysis and has not yet been dynamically reproduced. The Technical Details section above describes the code path; a trigger input is not included.
[No reproducer or sanitizer output attached — request from security-cvd@anthropic.com if needed.] | This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic security team in collaboration with Anthropic Research. Please direct questions to security-cvd@anthropic.com and reference ANT-2026-1ZNMP148.
Reference:
ANT-2026-1ZNMP148
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-1ZNMP148: Off-by-one heap buffer overflow in TLS extension negotiation due to SSL_MAX_EXTENSIONS (22) being too small for 23 extensions
SSL_MAX_EXTENSIONS is defined as 22 but 23 TLS extensions exist, causing an off-by-one heap buffer overflow during extension negotiation.
Target
Project:
nss
Location:
TLS ext... | Trail of Bits | true positive | # ANT-2026-1ZNMP148: ANT-2026-1ZNMP148 · nss
**Project:** nss | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** medium | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-6772, GHSA-c2q7-642g-3vwr
## Vulnerability Summary
SSL_MAX_EXTENSIONS is defined... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-1ZNMP148 · nss</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if(t==="lig... | fixed | true | 2026-03-29 | 2026-04-09 | 0e96e086b5559d23bf85a1a10318ec2a934193110dcdf952dffcf80f6ab8222da1344cf7ea9971e4fe0152c28aecf6a80b2cc14e3f4b2d1bea15164dd20873ea | 280 | 0 | 290 | 2,814 | 290 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.