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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 |
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ANT-2026-Y5M37QY4 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-Y5M37QY4 | wireshark/wireshark | heap-buffer-overflow | medium | high | high | medium | Claude Mythos Preview | [
"CVE-2026-15165"
] | [
"GHSA-3q2h-7599-7r76"
] | epan/dissectors/packet-tls-utils.c:10087 | static analysis β not yet dynamically reproduced | ANT-2026-Y5M37QY4: TLS ECH transcript reconstruction heap overflow | In Wireshark's TLS dissector,ssl->ech_transcript.datais allocated at packet-tls-utils.c:10066 with sizehello_length + 4(the outer ClientHello size). The extension-copy loop at :10087-10114 then processes the decrypted inner ClientHello and, for every 0xfd00 (ech_outer_extensions) entry, resetsouter_offsetandtvb_memcpys... | The transcript buffer is sized once to the outer ClientHello length, but the copy loop neither bounds-checks the destination nor enforces RFC's at-most-one
ech_outer_extensions
rule, and it re-initializes
outer_offset
per 0xfd00 entry so the same large outer extension can be memcpy'd repeatedly.
tvb_memcpy
only validat... | Craft a pcapng with a Decryption Secrets Block containing ECH_SECRET and ECH_CONFIG lines (auto-loaded by tls_secrets_block_callback).
Include a TLS ClientHello with an ECH payload that decrypts under the embedded secret (attacker controls HPKE key/ciphertext so auth tag validates).
In the decrypted inner ClientHello, ... | 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-Y5M37QY4.
Reference:
ANT-2026-Y5M37QY4
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-Y5M37QY4: TLS ECH transcript reconstruction heap overflow
In Wireshark's TLS dissector,
ssl->ech_transcript.data
is allocated at packet-tls-utils.c:10066 with size
hello_length + 4
(the outer ClientHello size). The extension-copy loop at :10087-10114 then processes the decrypted inner ClientHello and, for ever... | Ada Logics | true positive | diff --git a/epan/dissectors/packet-tls-utils.c b/epan/dissectors/packet-tls-utils.c
index ac725a4cbb1..8eb743b7929 100644
--- a/epan/dissectors/packet-tls-utils.c
+++ b/epan/dissectors/packet-tls-utils.c
@@ -10283,6 +10283,7 @@ ssl_dissect_hnd_hello_ext_ech(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_in
ssl->ech_t... | # ANT-2026-Y5M37QY4: ANT-2026-Y5M37QY4 Β· wireshark/wireshark
**Project:** wireshark/wireshark | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** medium
**Security Advisories:** CVE-2026-15165, GHSA-3q2h-7599-7r76
## Vulnerability Summ... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-Y5M37QY4 Β· wireshark/wireshark</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_the... | fixed | true | 2026-04-02 | 2026-07-22 | ea3625713c4457cf94a19766c6904d638aff57a96dbaad5756946453a48334f437e06603c95fb73fe513646b06ee7a82a17187f74dc84bff22ac74c72a24bd23 | 654 | 427 | 1,071 | 5,398 | 1,498 | |
ANT-2026-87DJGDRB | https://red.anthropic.com/2026/cvd/findings/ANT-2026-87DJGDRB | wolfssl/wolfssl | heap-buffer-overflow | low | high | high | low | Claude Mythos Preview | [
"CVE-2026-12340"
] | [
"GHSA-q349-x427-xg3w"
] | sha.c:733 | ANT-2026-87DJGDRB: Heap-buffer-overflow in sha.c:733 | When wc_PKCS7_InitWithCert is given an attacker-supplied certificate buffer, ParseCertRelative calls CalcHashId_ex to hash certificate data, which reaches wc_ShaUpdate. With a crafted short input, wc_ShaUpdate performs a 64-byte memcpy that reads past the end of the 8-byte input allocation. The attacker controls the ce... | ASAN: "READ of size 64 at 0x704ffcee0058 ... 0 bytes after 8-byte region". During certificate parsing, CalcHashId_ex passes a buffer/length derived from the malformed DER to wc_ShaHash β wc_ShaUpdate, which copies a full 64-byte SHA block without ensuring that many bytes remain in the source buffer, reading beyond the ... | Craft a short/malformed DER certificate buffer
Supply it to wc_PKCS7_InitWithCert()
ParseCertRelative β CalcHashId_ex β wc_ShaHash β wc_ShaUpdate memcpy reads 64 bytes past the buffer end
[No reproducer or sanitizer output attached β 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-2026-87DJGDRB.
Reference:
ANT-2026-87DJGDRB
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-87DJGDRB: Heap-buffer-overflow in sha.c:733
When wc_PKCS7_InitWithCert is given an attacker-supplied certificate buffer, ParseCertRelative calls CalcHashId_ex to hash certificate data, which reaches wc_ShaUpdate. With a crafted short input, wc_ShaUpdate performs a 64-byte memcpy that reads past the end of the ... | true positive | diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index 00be607506c..664d7862f5b 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -23380,6 +23380,10 @@ int ParseCertRelative(DecodedCert* cert, int type, int verify, void* cm,
if (cert->extSubjKeyIdSet == 0 && cert->publicKey != NULL &&
cert->pubKeySize... | # ANT-2026-87DJGDRB: ANT-2026-87DJGDRB Β· wolfssl/wolfssl
**Project:** wolfssl/wolfssl | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** low
**Security Advisories:** CVE-2026-12340, GHSA-q349-x427-xg3w
## Vulnerability Summary
When wc... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-87DJGDRB Β· 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 | 2026-03-24 | 2026-05-18 | f35e4f410ec58dab28431670e173e03fd1e5105f8afefc79c7edd5117d684d3aa377d218762d2f1ab70c6262e31227885bacaf2062958b077e305e5aebc6c37d | 1,099 | 218 | 1,347 | 4,742 | 1,565 | |||
ANT-2026-PGRNAV88 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-PGRNAV88 | apache/spark | other | critical | critical | - | - | Claude Mythos Preview | [] | [] | static analysis β not yet dynamically reproduced | ANT-2026-PGRNAV88: spark rce | UserDefinedType.fromJson() in python/pyspark/sql/types.py:2002 passes bytes taken from Parquet file metadata directly to cloudpickle.loads() with no validation. An attacker who can supply a crafted Parquet file to a PySpark consumer achieves arbitrary code execution in the reading process. No explicit .schema call is r... | The root cause is an unguarded call to cloudpickle.loads() on bytes sourced from untrusted Parquet metadata inside UserDefinedType.fromJson(). Because pickle deserialization is equivalent to code execution, any attacker who controls the Parquet file controls what runs in the PySpark process. | 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 β 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-PGRNAV88.
Reference:
ANT-2026-PGRNAV88
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-PGRNAV88: spark rce
UserDefinedType.fromJson() in python/pyspark/sql/types.py:2002 passes bytes taken from Parquet file metadata directly to cloudpickle.loads() with no validation. An attacker who can supply a crafted Parquet file to a PySpark consumer achieves arbitrary code execution in the reading process. ... | # ANT-2026-PGRNAV88: ANT-2026-PGRNAV88 Β· apache/spark
**Project:** apache/spark | **Bug Class:** other
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** critical | **Maintainer Severity:** -
## Vulnerability Summary
UserDefinedType.fromJson() in python/pyspark/sql/types.py:2002 passes bytes taken from ... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-PGRNAV88 Β· apache/spark</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme");if... | disclosed | false | 2026-02-22 | 2026-05-08 | df1df10cd5da6ed1bcf3f42888538eb4e2c779a9380d2112eb5817e07456599f2a1690af8b658b2998df4aeef6390c161d3e990141b48a8ce0b0d8b62036dbcd | 364 | 0 | 333 | 2,960 | 333 | |||||
ANT-2026-PCBAKVPB | https://red.anthropic.com/2026/cvd/findings/ANT-2026-PCBAKVPB | dnsmasq | heap-buffer-overflow | high | high | high | high | an unreleased Anthropic model | [
"CVE-2026-4892"
] | [
"GHSA-m62j-63mf-xr95"
] | src/helper.c:265 | ANT-2026-PCBAKVPB: Heap overflow in privileged helper via oversized DHCPv6 client identifier | In dnsmasq's privileged script helper (helper.c:265-270), each byte of the DHCP client-ID is hex-encoded with sprintf into daemon->packet, a ~2267-byte buffer allocated at startup and inherited via fork(). DHCPv6 option lengths are 16-bit and state->clid_len is taken from the wire at rfc3315.c:338 with no upper bound, ... | Sink confirmed via ASAN: a harness allocating daemon->packet exactly as dnsmasq.c:128-129 does (PACKETSZ+MAXDNAME+RRFIXEDSZ = 1547 bytes at default edns_pktsz) and running the exact helper.c:265-270 hex-encode loop with clid_len=800 produced 'AddressSanitizer: heap-buffer-overflow β¦ WRITE of size 3 β¦ 0 bytes after 1547... | Craft a DHCPv6 SOLICIT containing OPTION6_RAPID_COMMIT, a minimal IA_TA (4-byte header + 4-byte IAID), and OPTION6_CLIENT_ID with a β₯756-byte (e.g. 1200-byte) payload
Send it to the dnsmasq DHCPv6 port; packet fits in a single 1280-byte-MTU IPv6 frame
RAPID_COMMIT path (rfc3315.c:654-660) sets lease_allocate=1; server ... | 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-PCBAKVPB.
Reference:
ANT-2026-PCBAKVPB
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-PCBAKVPB: Heap overflow in privileged helper via oversized DHCPv6 client identifier
In dnsmasq's privileged script helper (helper.c:265-270), each byte of the DHCP client-ID is hex-encoded with sprintf into daemon->packet, a ~2267-byte buffer allocated at startup and inherited via fork(). DHCPv6 option lengths... | Trail of Bits | true positive | # ANT-2026-PCBAKVPB: ANT-2026-PCBAKVPB Β· dnsmasq
**Project:** dnsmasq | **Bug Class:** heap-buffer-overflow
**Attributed Model:** an unreleased Anthropic model | **Claude Severity:** high | **Maintainer Severity:** high
**Security Advisories:** CVE-2026-4892, GHSA-m62j-63mf-xr95
## Vulnerability Summary
In dnsmasq's pr... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-PCBAKVPB Β· dnsmasq</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 | 2026-05-07 | 11a65d2d8b73e1b60aecd4aa985a653c77e1870999845708ab73eb335b44073062498a75e0adff81fdda190aa5e9610c21c27d36961cc01f8493cf85f7e3fa81 | 1,478 | 0 | 1,465 | 5,872 | 1,465 | |||
ANT-2026-JBKARRJ7 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-JBKARRJ7 | libvips/libvips | oob-write | low | low | low | - | Claude Mythos Preview | [
"CVE-2026-35590"
] | [
"GHSA-jmwm-wc68-mhwm"
] | static analysis β not yet dynamically reproduced | ANT-2026-JBKARRJ7: Out-of-bounds IFD array access in EXIF metadata processing leading to write through corrupted pointer | An out-of-bounds index into the IFD array during EXIF parsing produces a corrupted pointer that is then used as a write target. | 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 β 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-JBKARRJ7.
Reference:
ANT-2026-JBKARRJ7
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-JBKARRJ7: Out-of-bounds IFD array access in EXIF metadata processing leading to write through corrupted pointer
An out-of-bounds index into the IFD array during EXIF parsing produces a corrupted pointer that is then used as a write target.
Target
Project:
libvips/libvips
Discovery:
static analysis β not yet dy... | Trail of Bits | true positive | diff --git a/ChangeLog b/ChangeLog
index bc3e3ace80..5ea68a830d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,7 @@
date-tbd 8.18.2
- convolution: avoid using unsigned accumulators [nakrovati]
+- exif: check ifdN range [trailofbits]
- tiffload: check jpeg and jp2k components [wooseokdotkim]
- uhdrsave: set Q for gai... | # ANT-2026-JBKARRJ7: ANT-2026-JBKARRJ7 Β· libvips/libvips
**Project:** libvips/libvips | **Bug Class:** oob-write
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** low | **Maintainer Severity:** -
**Security Advisories:** CVE-2026-35590, GHSA-jmwm-wc68-mhwm
## Vulnerability Summary
An out-of-bounds inde... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-JBKARRJ7 Β· libvips/libvips</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 | 3d086296fdc3ee597627329b2198c6f0a171f3bd2c5912fead06195a09493bc3afd1314179768a43ecdd28a66f5fc9a18544fc24276ed804afd3496622bb7325 | 213 | 316 | 552 | 3,235 | 868 | |||
ANT-2026-Q430PMKE | https://red.anthropic.com/2026/cvd/findings/ANT-2026-Q430PMKE | sctp/lksctp-tools | heap-buffer-overflow | low | high | low | - | Claude Opus 4.6 | [] | [] | sendmsg.c:169 | ANT-2026-Q430PMKE: Heap-buffer-overflow in sendmsg.c:169 | A compiled PoC binary deterministically triggers a heap-buffer-overflow in the lksctp-tools userspace library. The fault occurs inside sctp_sendv (src/lib/sendmsg.c:169), where the code performs a 2-byte read immediately past the end of a 16-byte heap buffer. The overflow reproduced identically across 3 independent run... | ASAN: heap-buffer-overflow, READ of size 2, 0 bytes to the right of a 16-byte heap region, at sctp_sendv (sendmsg.c:169). The library reads a 2-byte value starting exactly at the end boundary of a 16-byte allocation, indicating a missing or incorrect length/bounds check on a caller-supplied structure before it is deref... | Reproduce against the target as described under Technical Details.
[No reproducer or sanitizer output attached β 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-Q430PMKE.
Reference:
ANT-2026-Q430PMKE
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-Q430PMKE: Heap-buffer-overflow in sendmsg.c:169
A compiled PoC binary deterministically triggers a heap-buffer-overflow in the lksctp-tools userspace library. The fault occurs inside sctp_sendv (src/lib/sendmsg.c:169), where the code performs a 2-byte read immediately past the end of a 16-byte heap buffer. The... | Trail of Bits | will not fix | # ANT-2026-Q430PMKE: ANT-2026-Q430PMKE Β· sctp/lksctp-tools
**Project:** sctp/lksctp-tools | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Opus 4.6 | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
A compiled PoC binary deterministically triggers a heap-buffer-overflow ... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-Q430PMKE Β· sctp/lksctp-tools</title>
<link rel="icon" type="image/x-icon" href="/anthropic-serve/favicon.ico">
<script>(function(){try{var t=localStorage.getItem("cvd_theme... | disclosed | false | 2026-03-24 | 2026-03-01 | c54cecb1ce6825a31fc73c698315249bad576626c38b1218a5997c02b0bb0d6b6c0872d8fa1cc5ee818bd0da0eb406578dcfeb118099d7cce3af010babbed563 | 522 | 0 | 525 | 3,243 | 525 | |||
ANT-2026-GY2SF1XW | https://red.anthropic.com/2026/cvd/findings/ANT-2026-GY2SF1XW | grok | heap-buffer-overflow | high | high | high | - | Claude Mythos Preview | [] | [] | FileFormatMJ2Decompress.cpp:593 | ANT-2026-GY2SF1XW: Heap-buffer-overflow in FileFormatMJ2Decompress.cpp:593 | During MJ2 header parsing, read_stts() populates a std::vector based on the stts box entry count (tts_decompact, line 480). Later, read_stco() iterates over stco chunk offset entries and writes into that same vector (stco_decompact, line 593). No check enforces that the stco entry count is bounded by the number of samp... | ASAN: WRITE of size 4 at 0x6c7124fe02a0, located 4 bytes after a 12-byte heap region. The 12-byte region holds a single mj2_sample element allocated by vector::push_back in tts_decompact. stco_decompact then indexes past the vector's end β it trusts the stco box's own entry count rather than the actual size of the samp... | Craft an MJ2 container with an stts box declaring a small sample count (e.g., 1 sample β 12-byte vector)
Include a subsequent stco box declaring a larger chunk offset count
Deliver file to victim; Grok's readHeader parses stts first (allocates small vector), then stco
stco_decompact writes attacker-controlled 32-bit of... | 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-GY2SF1XW.
Reference:
ANT-2026-GY2SF1XW
Anthropic CVD Policy:
https://www.anthropic.com... | ANT-2026-GY2SF1XW: Heap-buffer-overflow in FileFormatMJ2Decompress.cpp:593
During MJ2 header parsing, read_stts() populates a std::vector based on the stts box entry count (tts_decompact, line 480). Later, read_stco() iterates over stco chunk offset entries and writes into that same vector (stco_decompact, line 593). N... | Ada Logics | true positive | # ANT-2026-GY2SF1XW: ANT-2026-GY2SF1XW Β· grok
**Project:** grok | **Bug Class:** heap-buffer-overflow
**Attributed Model:** Claude Mythos Preview | **Claude Severity:** high | **Maintainer Severity:** -
## Vulnerability Summary
During MJ2 header parsing, read_stts() populates a std::vector based on the stts box entry c... | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ANT-2026-GY2SF1XW Β· grok</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 | 2026-03-24 | 2026-06-06 | 9724c7cfaf8b05bf517732e8d02a0166a2bb18e06f9a955c626aa0048c550b41f66800681544d5026a1f1bb45bf6c492499566d9a90eb5cdd9989b8a8bf3edca | 1,121 | 0 | 1,108 | 4,496 | 1,108 | |||
ANT-2026-6YNNSAA0 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-6YNNSAA0 | supabase/supabase | other | low | low | - | - | Claude Mythos Preview | [] | [] | examples/edge-functions/supabase/functions/openai-image-generation/index.ts:44 | static analysis β not yet dynamically reproduced | "ANT-2026-6YNNSAA0: Image-generation function fetches arbitrary caller URL with service-role in scop(...TRUNCATED) | "The openai-image-generation example edge function readsimageUrlfrom the request body, fetches it wi(...TRUNCATED) | "The root cause is trusting a client-supplied URL as if it were the server-generated OpenAI result: (...TRUNCATED) | "Authenticate to the target Supabase project to obtain a valid JWT\nInvoke the openai-image-generati(...TRUNCATED) | "This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic(...TRUNCATED) | "ANT-2026-6YNNSAA0: Image-generation function fetches arbitrary caller URL with service-role in scop(...TRUNCATED) | "diff --git a/examples/ai/aws_bedrock_image_gen/supabase/config.toml b/examples/ai/aws_bedrock_image(...TRUNCATED) | "# ANT-2026-6YNNSAA0: ANT-2026-6YNNSAA0 Β· supabase/supabase\n**Project:** supabase/supabase | **Bug(...TRUNCATED) | "<!doctype html>\n<html lang=\"en\">\n<head>\n<meta charset=\"utf-8\">\n<meta name=\"viewport\" cont(...TRUNCATED) | fixed | true | 2026-05-10 | 2026-05-18 | "8285a4575d867fe3826ec74bd88e9d7b46a4a14b310d96161de186d1c6ac4a12027375298a9ceaee8d188ebabefd7cf9411(...TRUNCATED) | 562 | 2,281 | 2,751 | 8,516 | 5,032 | |||
ANT-2026-WNRZ9D35 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-WNRZ9D35 | osgeo/gdal | heap-buffer-overflow | high | critical | high | - | Claude Mythos Preview | [] | [] | ANT-2026-WNRZ9D35: Heap-buffer-overflow in gdal | "The gdal_translate_fuzzer harness terminated with EXIT_CODE:1 when run against the supplied input, (...TRUNCATED) | "ASAN: heap-buffer-overflow WRITE of size 8 in TrimmingProcess. The root cause is a missing consiste(...TRUNCATED) | "Reproduce against the target as described under Technical Details.\n\n[No reproducer or sanitizer o(...TRUNCATED) | "This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic(...TRUNCATED) | "ANT-2026-WNRZ9D35: Heap-buffer-overflow in gdal\nThe gdal_translate_fuzzer harness terminated with (...TRUNCATED) | Ada Logics | true positive | "diff --git a/autotest/gdrivers/vrtprocesseddataset.py b/autotest/gdrivers/vrtprocesseddataset.py\ni(...TRUNCATED) | "# ANT-2026-WNRZ9D35: ANT-2026-WNRZ9D35 Β· osgeo/gdal\n**Project:** osgeo/gdal | **Bug Class:** heap(...TRUNCATED) | "<!doctype html>\n<html lang=\"en\">\n<head>\n<meta charset=\"utf-8\">\n<meta name=\"viewport\" cont(...TRUNCATED) | fixed | true | 2026-03-24 | 2026-05-07 | "5b5be7d5d077ff2663299960d35549bf6b3b1002b43e298475ccc1f822ef1b9fe11385712582d9c95d1c0ea18401bc96a9c(...TRUNCATED) | 515 | 1,409 | 1,926 | 6,216 | 3,335 | |||
ANT-2026-6DSMTXZ8 | https://red.anthropic.com/2026/cvd/findings/ANT-2026-6DSMTXZ8 | mastodon/mastodon | ssrf | high | high | high | - | Claude Mythos Preview | [
"CVE-2026-46348"
] | [
"GHSA-crr4-7rm4-8gpw"
] | c832fb3291f25d8b | app/lib/private_address_check.rb:33 | static analysis β not yet dynamically reproduced | ANT-2026-6DSMTXZ8: SSRF Bypass via IPv6 Unspecified Address (::) in Mastodon | "Mastodon routes all outbound HTTP through Request::Socket, which validates resolved IPs with Privat(...TRUNCATED) | "For IPAddr.new(\"::\"), all four predicates in private_address? return false: it is not private?, n(...TRUNCATED) | "Register evil.example and publish AAAA evil.example -> ::\nPOST /api/v1/statuses with body containi(...TRUNCATED) | "This vulnerability was discovered by Claude, Anthropic's AI assistant, and triaged by the Anthropic(...TRUNCATED) | "ANT-2026-6DSMTXZ8: SSRF Bypass via IPv6 Unspecified Address (\n::\n) in Mastodon\nMastodon routes a(...TRUNCATED) | Doyensec | true positive | "# ANT-2026-6DSMTXZ8: ANT-2026-6DSMTXZ8 Β· mastodon/mastodon\n**Project:** mastodon/mastodon | **Bug(...TRUNCATED) | "<!doctype html>\n<html lang=\"en\">\n<head>\n<meta charset=\"utf-8\">\n<meta name=\"viewport\" cont(...TRUNCATED) | fixed | true | 2026-03-30 | 2026-04-23 | "868595c9247644d3902e1edcb8d502294a9a9cdfa37d38bc25ed6063dc37fcdc447494225eccdff02df7e7abd198eeb8cda(...TRUNCATED) | 632 | 0 | 651 | 9,885 | 651 |
- π Overview & Executive Summary
- π Comprehensive Token & Corpus Statistics
- π€ Models Credited with Discoveries
- π Vulnerability Taxonomy & Bug Classes
- π’ Top Affected Open-Source Projects
- π€ Security Research Firms & Triage Partners
- π Master Ledger Status Distribution
- ποΈ Dataset Schema
- π Quick Start Examples
- π Automated Updates
- βοΈ License & Ethical Disclosure
π‘οΈ Anthropic Red Teaming & Coordinated Vulnerability Disclosure (CVD) Archive
Complete, high-fidelity research corpus of AI-discovered zero-day and N-day vulnerabilities, proof-of-concepts, independent triage reports, and upstream git fix patches.
Overview Β· Corpus & Token Stats Β· Model Attribution Β· Vulnerability Taxonomy Β· Target Projects Β· Triage Partners Β· Dataset Schema Β· Quick Start
π Overview & Executive Summary
The Anthropic Red Teaming & Coordinated Vulnerability Disclosure (CVD) Archive is an exhaustive, structured database capturing all vulnerability discoveries conducted by Anthropic's frontier AI models (including Claude Opus 4.6 and early development snapshots of Claude Mythos Preview) published under Anthropic's Coordinated Vulnerability Disclosure Policy.
Curated and maintained by Sphita AI Research, this dataset represents one of the world's most significant empirical corpora of autonomous AI software vulnerability identification, exploit pathing, and patch verification in production-critical open-source software (PostgreSQL, FreeBSD, LibreOffice, WolfSSL, Mastodon, Firecracker, etc.).
Key Highlights
- Full Multi-Party Triaged Dossiers: Every revealed finding contains the complete root-cause analysis by Claude, independent validation by partner security firms, and severity assessments from maintainers.
- Direct Git Unified Patches: Paired with every resolved vulnerability is the exact upstream fix diff applied to resolve the defect.
- BPE Token Profiling: All text fields, reports, diffs, and syntheses are measured using the OpenAI/Claude standard
cl100k_baseBPE tokenizer. - Dual Format Persistence: Packaged into zero-overhead Apache Parquet tables (compressed via Zstandard-7) and line-delimited JSONL files.
- Master Commitment Ledger: Contains all 6,597 commitments tracked in Anthropic's disclosure registry.
π Comprehensive Token & Corpus Statistics
All token counts are computed deterministically using tiktoken with the cl100k_base BPE tokenizer:
| Metric | cl100k Tokens | Percentage | Description |
|---|---|---|---|
| Clean Markdown Representation | 252.1K | 100.0% | Complete synthesis for training / instruction fine-tuning |
| Vulnerability Technical Reports | 153.4K | ~35.0% | Root-cause analysis, target commits, and location specs |
| Upstream Fix Diffs (Patches) | 110.8K | ~40.0% | Unified git diffs resolving the vulnerabilities |
| Total Filtered Corpus Tokens | 362.9K | 100.0% | Combined high-density tokens |
Dataset Overview Table
| Category | Value | Notes |
|---|---|---|
| Total Commitments in Ledger | 6,597 | All SHA3-512 commitment records in disclosure tracker |
| Fully Revealed Finding Dossiers | 237 | Expired disclosure embargoes with complete reports & diffs |
| Unique CVE Identifiers Issued | 101 | Official NIST NVD CVE records |
| Unique GitHub Security Advisories | 80 | Official GHSA advisories |
| Unique Target Open Source Repositories | 20 | Infrastructure, virtualization, databases, and runtimes |
π€ Models Credited with Discoveries
Distribution of vulnerability discoveries attributed to specific frontier Claude checkpoints:
| Model Checkpoint | Discoveries | Share | Role & Scope |
|---|---|---|---|
Claude Mythos Preview |
191 | 80.6% | |
Claude Opus 4.6 |
9 | 3.8% | |
an unreleased Anthropic model |
6 | 2.5% | |
Claude Sonnet 4.6 |
4 | 1.7% |
π Vulnerability Taxonomy & Bug Classes
Breakdown of identified vulnerability classes across the disclosed findings:
| Bug Class | Findings | Share |
|---|---|---|
heap-buffer-overflow |
90 | 38.0% |
other |
26 | 11.0% |
stack-buffer-overflow |
24 | 10.1% |
use-after-free |
19 | 8.0% |
auth-bypass |
8 | 3.4% |
sql-injection |
7 | 3.0% |
denial-of-service |
6 | 2.5% |
path-traversal |
6 | 2.5% |
oob-write |
5 | 2.1% |
broken-access-control |
4 | 1.7% |
integer-overflow |
4 | 1.7% |
crypto-failure |
3 | 1.3% |
π’ Top Affected Open-Source Projects
The AI models targeted critical open-source infrastructure across networking, virtualization, and compilers:
| Repository / Project | Revealed Findings | Share | Tracking Dashboard |
|---|---|---|---|
ffmpeg/ffmpeg |
14 | 5.9% | Findings |
wolfssl/wolfssl |
12 | 5.1% | Findings |
libreoffice/core |
12 | 5.1% | Findings |
supabase/supabase |
11 | 4.6% | Findings |
osgeo/gdal |
11 | 4.6% | Findings |
freerdp/freerdp |
11 | 4.6% | Findings |
supabase/auth |
9 | 3.8% | Findings |
wireshark/wireshark |
8 | 3.4% | Findings |
torvalds/linux |
6 | 2.5% | Findings |
supabase/postgres |
4 | 1.7% | Findings |
opensc |
4 | 1.7% | Findings |
graphicsmagick/graphicsmagick |
3 | 1.3% | Findings |
libjxl |
3 | 1.3% | Findings |
oisf/suricata |
3 | 1.3% | Findings |
selinux |
3 | 1.3% | Findings |
π€ Security Research Firms & Triage Partners
Anthropic partners with leading security research firms to independently reproduce findings and execute responsible disclosure:
| Security Research Firm | Validated Findings | Triage Role |
|---|---|---|
Ada Logics |
79 | Independent Triager & CVD Coordinator |
Trail of Bits |
59 | Independent Triager & CVD Coordinator |
Calif |
24 | Independent Triager & CVD Coordinator |
Doyensec |
7 | Independent Triager & CVD Coordinator |
Anvil Security |
6 | Independent Triager & CVD Coordinator |
Ophion Security |
4 | Independent Triager & CVD Coordinator |
π Master Ledger Status Distribution
Status of all 6,597 commitments tracked in the master registry:
| Disclosure Status | Count | Share |
|---|---|---|
disclosed |
5,936 | 90.0% |
withdrawn |
246 | 3.7% |
fixed |
218 | 3.3% |
None |
195 | 3.0% |
merged |
2 | 0.0% |
ποΈ Dataset Schema
Configuration 1: findings-revealed (data/findings_revealed.parquet)
| Column Name | PyArrow Type | Description |
|---|---|---|
ant_id |
string |
Unique Anthropic finding identifier (e.g., ANT-2026-CJQWKW82) |
source_url |
string |
Canonical disclosure URL on red.anthropic.com |
project |
string |
Target repository identifier (e.g., postgres/postgres) |
bug_class |
string |
Classification of the defect (e.g., denial-of-service) |
headline_severity |
string |
Headline severity rating (critical, high, medium, low) |
claude_severity |
string |
Severity assessed by the discovering Claude model |
vendor_severity |
string |
Severity verified by the independent security research firm |
maintainer_severity |
string |
Severity confirmed by upstream project maintainers |
discovered_by_model |
string |
Frontier Claude model credited (e.g., Claude Opus 4.6) |
cve_ids |
list<string> |
Associated CVE records |
ghsa_ids |
list<string> |
Associated GitHub Security Advisory identifiers |
target_commit |
string |
Git commit SHA of the audited codebase snapshot |
target_location |
string |
Exact source code file path and line number of vulnerability |
discovery_method |
string |
Method used (e.g., static analysis, symbolic execution) |
report_title |
string |
Title of the vulnerability report |
report_summary |
string |
Concise synopsis of exploitation mechanism |
technical_details |
string |
Deep technical explanation of the flaw |
reproduction_notes |
string |
Reproduction steps and exploit prerequisites |
acknowledgement |
string |
Program attribution and contact details |
report_full_text |
string |
Complete verbatim report text |
security_firm_name |
string |
Name of the third-party security firm (e.g., Calif, Trail of Bits) |
security_firm_verdict |
string |
Firm determination (e.g., true positive) |
upstream_fix_diff |
string |
Complete unified git diff applied by maintainers |
clean_markdown |
string |
Formatted markdown document ready for LLM fine-tuning |
raw_html |
string |
Original unparsed HTML document |
status |
string |
Disclosure status (disclosed, fixed, etc.) |
patched |
bool |
Whether an official fix has shipped |
discovered_on |
string |
ISO discovery date |
committed_at |
string |
ISO commitment date |
hash |
string |
SHA3-512 commitment proof |
tokens_cl100k_report |
int64 |
cl100k_base token count of report |
tokens_cl100k_diff |
int64 |
cl100k_base token count of git diff |
tokens_cl100k_markdown |
int64 |
cl100k_base token count of synthesized markdown |
tokens_cl100k_total |
int64 |
Combined research tokens (markdown + diff) |
π Quick Start Examples
Python (datasets)
from datasets import load_dataset
# Load detailed revealed findings
dataset = load_dataset("sphita/anthropic-red", name="findings-revealed", split="train")
print(f"Loaded {len(dataset)} detailed vulnerability dossiers")
# Inspect a finding
sample = dataset[0]
print("ID:", sample["ant_id"])
print("Project:", sample["project"])
print("Model:", sample["discovered_by_model"])
print("Diff Tokens:", sample["tokens_cl100k_diff"])
Python (pandas / pyarrow)
import pandas as pd
df = pd.read_parquet("https://huggingface.co/datasets/sphita/anthropic-red/resolve/main/data/findings_revealed.parquet")
print(df[["ant_id", "project", "bug_class", "discovered_by_model", "tokens_cl100k_total"]].head(10))
π Automated Updates
This dataset is dynamically updated via the Sphita Ingestion Pipeline:
./run.sh --update --upload
The pipeline automatically tracks newly disclosed commitments, fetches incremental finding writeups, verifies token statistics under a strict < 500 MiB RAM budget, and updates the repository.
βοΈ License & Ethical Disclosure
- License: GNU General Public License v3.0 (GPL-3.0).
- Coordinated Disclosure: All findings contained in this dataset have completed their standard responsible disclosure period under Anthropic's Coordinated Vulnerability Disclosure Policy.
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