ANT-2026-YZAKBHEW · hermes · Heap-buffer-overflow

heap-buffer-overflow critical Severity Claude critical · Security research firm critical revised; sealed as high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-YZAKBHEW:...

ANT-2026-QA1CT79B · Ghostscript · heap-buffer-overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview SECURITY RESEARCH FIRM ANALYSIS Triage and disclosure were performed by Trail of Bits. The writeup below is the document the firm sent to the maintainer. Verdict: true...

ANT-2026-MHV0A2SD · FreeType2 · Heap Buffer Overflow

heap-buffer-overflow medium Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-MHV0A2SD: Heap buffer overflow in Type 1...

ANT-2026-ZJXVWQEA · flex · Heap Buffer Overflow

heap-buffer-overflow low Severity Claude low · Security research firm low · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-ZJXVWQEA: Heap buffer overflow in sfinit due to stale...

ANT-2026-DYWJSTZZ · faad2 · Heap Buffer Overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-DYWJSTZZ: Heap buffer overflow in SBR QMF synthesi...

ANT-2026-ZGY30A9P · c-blosc2 · Heap Buffer Overflow

heap-buffer-overflow medium Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-ZGY30A9P: Heap buffer overflow in compressio...

ANT-2026-BH289AV8 · c-blosc2 · Heap Buffer Overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-BH289AV8: Heap buffer overflow in ndcell filter vi...

ANT-2026-9R51NPJC · c-blosc2 · Heap Buffer Overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-9R51NPJC: Heap buffer overflow in NDLZ8 triple-mat...

ANT-2026-3M3723P3 · binutils · Heap Buffer Overflow

heap-buffer-overflow medium Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-3M3723P3: Heap buffer overflow in FR30 ELF...

ANT-2026-B324R0JY · syncthing/syncthing · auth_bypass

auth-bypass high Severity Claude critical · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Doyensec. ANT-2026-B324R0JY: stdiscosrv trusts proxy header for client identity...

ANT-2026-50T0MN89 · uboot · Out-of-bounds-write

oob-write high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-50T0MN89: U-Boot EFI Image Loader: Out-of-Bounds Write via Unbounded ...

ANT-2026-T6EKK5DB · openssh · heap-buffer-overflow (READ of size 1, 1 byte before allocation)

heap-buffer-overflow low Severity Claude critical · Security research firm low · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-T6EKK5DB: heap-buffer-overflow READ of size 1, 1 byte...

ANT-2026-2NNMB24E · openssh · stack-overflow

stack-overflow low Severity Claude critical · Security research firm low · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-2NNMB24E: stack-overflow in openssh OpenSSH's matchpattern in...

ANT-2026-XKHM3P45 · nss · heap-use-after-free

use-after-free low Severity Claude critical · Security research firm low · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-XKHM3P45: Heap use-after-free in NSS DTLS client via crafted...

ANT-2026-110HTZ5M · jsrsasign · Cryptographically Weak PRNG / Predictable ECDSA Nonce

other high Severity Claude high · Security research firm high · Maintainer - REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-110HTZ5M: jsrsasign npm — ECDSA nonce RNG seeded entirely from Math.random in Node.js The npm wrapper at...

ANT-2026-SC8JK49A · ffmpeg · Heap-buffer-overflow

heap-buffer-overflow high Severity Claude critical · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-SC8JK49A: Heap-buffer-overflow in ffmpeg FFmpeg's Dira...

ANT-2026-45SRWS4Q · bearssl · Heap Buffer Overflow

heap-buffer-overflow high Severity Claude high · Security research firm - · Maintainer - REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-45SRWS4Q: BearSSL Missing Block-Alignment Check in cbcchecklength → Unbounded Heap/Stack Write vi...

ANT-2026-Z3GGGKM5 · ava-labs/libevm · Denial of Service / Nil Pointer Dereference

denial-of-service high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Anvil Security. ANT-2026-Z3GGGKM5: Reentrancy guard dereferences nil StateDB...

ANT-2026-CEP8Y9M0 · ffmpeg · Use-After-Free

use-after-free high Severity Claude high · Security research firm - · Maintainer - REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-CEP8Y9M0: avformat/mpegts: reset PES state before JPEG-XS error return In the MPEG-TS demuxer, newpespacket begins transferring ownership of...

ANT-2026-87DJGDRB · wolfssl · Heap-buffer-overflow

heap-buffer-overflow low CVE-2026-12340 GHSA-q349-x427-xg3w Severity Claude high · Security research firm high · Maintainer low Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-87DJGDRB: Heap-buffer-overflow in sha.c:733 When...

ANT-2026-P7DSVPH6 · wasm-micro-runtime · Heap-buffer-overflow

heap-buffer-overflow critical GHSA-wj3p-xhqm-pffc Severity Claude critical · Security research firm critical · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-P7DSVPH6:...

ANT-2026-669BEQ2W · WAMR · Heap Buffer Overflow

heap-buffer-overflow low Severity Claude low · Security research firm low · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-669BEQ2W: Integer overflow in array.new size...

ANT-2026-ZRDQDR79 · util-linux · heap-use-after-free

use-after-free medium CVE-2026-13595 GHSA-qpmf-9p9c-455w Severity Claude critical · Security research firm high · Maintainer medium Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-ZRDQDR79:...

ANT-2026-5WVCAVEA · UPX · Heap Buffer Overflow

heap-buffer-overflow medium Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-5WVCAVEA: Heap buffer overflow in unDTINIT...

ANT-2026-QRHVDRQ1 · Unicorn · Heap Buffer Overflow

heap-buffer-overflow medium Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-QRHVDRQ1: Heap buffer overflow via MIPS CP0...

ANT-2026-MHJX7J31 · typo3 · XSS

xss medium CVE-2026-47345 GHSA-p5j5-4j3q-8mq8 Severity Claude high · Security research firm high · Maintainer medium Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Doyensec. ANT-2026-MHJX7J31: Stored XSS in TYPO3...

ANT-2026-J3EVXWDY · twigphp/Twig · code_injection

code-injection critical CVE-2026-46633 GHSA-7p85-w9px-jpjp Severity Claude high · Security research firm high · Maintainer critical Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Anvil Security. ANT-2026-J3EVXWDY:...

ANT-2026-203E7E95 · twigphp/Twig · auth_bypass

auth-bypass high CVE-2026-46639 GHSA-mm6w-gr99-p3jj Severity Claude high · Security research firm high · Maintainer high Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Anvil Security. ANT-2026-203E7E95: Sandbox...

ANT-2026-WCSVRYAX · suricata · heap-use-after-free

use-after-free high CVE-2026-45751 GHSA-59q6-j4w8-8pjx Severity Claude critical · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-WCSVRYAX:...

ANT-2026-N6TD9MF6 · runc · Symlink-following

symlink-following medium CVE-2026-41579 GHSA-xjvp-4fhw-gc47 Severity Claude high · Security research firm high · Maintainer medium Discovered by an unreleased Anthropic model REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics...

ANT-2026-QXNF2N9K · rocketchat · Authentication-bypass

auth-bypass high CVE-2026-48929 Severity Claude high · Security research firm high · Maintainer high Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ophion Security. ANT-2026-QXNF2N9K: Unauthenticated Arbitrary Fil...

ANT-2026-GTGXBRXN · rabbitmq-c · Integer Underflow

integer-underflow medium CVE-2026-44235 Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-GTGXBRXN: sizet underflow in AMQ...

ANT-2026-KP4YD2Z6 · php/php-src · Memory Corruption / Heap Buffer Overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-KP4YD2Z6: DBA flatfile length parsing triggers heap...

ANT-2026-8RX9XHEB · php/php-src · Memory Corruption / Out-of-Bounds Write

oob-write high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-8RX9XHEB: Heap out-of-bounds write in font loader via stride...

ANT-2026-AYWQW7P2 · openssl · Use-After-Free

use-after-free critical CVE-2026-45447 GHSA-f684-cpcq-j565 Severity Claude high · Security research firm high · Maintainer critical REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-AYWQW7P2: PKCS7verify frees caller-owned indata BIO wh...

ANT-2026-GSDN3H7W · OpenSC · Stack Buffer Overflow

stack-buffer-overflow low CVE-2026-40528 Severity Claude low · Security research firm low · Maintainer low Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-GSDN3H7W: Stack buffer overflow in...

ANT-2026-KC1Y51NF · openmeterio/openmeter · sql_injection

sql-injection medium CVE-2026-8462 GHSA-wc3v-3457-c8cm Severity Claude high · Security research firm high · Maintainer medium Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Anvil Security. ANT-2026-KC1Y51NF: SQL...

ANT-2026-YQ12XT7Y · openbabel · Heap-buffer-overflow

heap-buffer-overflow high Severity Claude critical · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-YQ12XT7Y: Heap-buffer-overflow in openbabel...

ANT-2026-1ZNMP148 · NSS · Heap Buffer Overflow

heap-buffer-overflow high CVE-2026-6772 GHSA-c2q7-642g-3vwr Severity Claude medium · Security research firm medium · Maintainer high Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-1ZNMP148:...

ANT-2026-PJV7Z0AR · open62541 · Integer Overflow

integer-overflow high CVE-2026-63559 CVE-2026-65423 Severity Claude high · Security research firm high · Maintainer high Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-PJV7Z0AR: Integer...

ANT-2026-3SEPW083 · ncurses · Stack-buffer-overflow

stack-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by an unreleased Anthropic model REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-3SEPW083: Stack buffer overflow in SGR mouse...

ANT-2026-CAH7XGSQ · lua · stack-overflow

stack-overflow low Severity Claude low · Security research firm low · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Anvil Security. ANT-2026-CAH7XGSQ: stack-overflow C stack exhaustion via unbounded...

ANT-2026-JBKARRJ7 · libvips · Out-of-bounds Write

oob-write low CVE-2026-35590 GHSA-jmwm-wc68-mhwm Severity Claude low · Security research firm low · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-JBKARRJ7: Out-of-bounds IFD...

ANT-2026-GPA6MCZ6 · libvips · Heap-buffer-overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Sonnet 4.6 REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-GPA6MCZ6: Heap-buffer-overflow in region.c:1614 In...

ANT-2026-0HC68EK6 · LibreOffice · Heap Buffer Overflow

heap-buffer-overflow medium CVE-2026-6047 Severity Claude medium · Security research firm medium · Maintainer medium Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-0HC68EK6: Heap Buffer Overfl...

ANT-2026-Q5A1RHS0 · libssh2/libssh2 · double_free

double-free high CVE-2026-66032 Severity Claude critical · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-Q5A1RHS0: SFTP double-free via server-controlled...

ANT-2026-C6E98TYX · liboqs · Uninitialized Function Pointer (CWE-824)

other high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-C6E98TYX: 01-liboqs-ntru-uninit-fn-ptr The NTRU constructors in...

ANT-2026-9WB9SMM6 · libass · heap-buffer-overflow

heap-buffer-overflow high GHSA-pjjp-65r7-ppgm Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-9WB9SMM6: Heap-buffer-overflow in...

ANT-2026-RVPC18B1 · libgit2 · Heap Buffer Overflow

heap-buffer-overflow medium GHSA-wfx7-g85r-q6vw Severity Claude medium · Security research firm medium · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-RVPC18B1: Heap buffer...

ANT-2026-1FT5E1XF · lcms · Stack-buffer-overflow

stack-buffer-overflow low Severity Claude high · Security research firm high · Maintainer low Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-1FT5E1XF: Stack-buffer-overflow in cmslut.c:1373 Wh...