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 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: heap-use-after-free in...

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 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 AMQP frame length...

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 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 injection in...

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...

ANT-2026-6JWE6ZK7 · langchain-ai/deepagentsjs · sandbox_escape

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 Anvil Security. ANT-2026-6JWE6ZK7: VFS sandbox executes agent commands directly on host T...

ANT-2026-MAPZGQDY · jsoncons · 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-MAPZGQDY: Heap-buffer-overflow in bigint.hpp:260 Duri...

ANT-2026-BDHSQ5GE · hunspell · Stack-buffer-overflow

stack-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-BDHSQ5GE: Stack-buffer-overflow in hunspell...

ANT-2026-GSPVGEYA · gpg/libgcrypt · Stack Buffer Overflow

stack-buffer-overflow medium CVE-2026-41990 GHSA-78pv-qq8x-94px Severity Claude high · Security research firm - · Maintainer medium Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-GSPVGEYA: ML-DSA...

ANT-2026-VN61PHA0 · gitea · IDOR

idor medium CVE-2026-58435 GHSA-rh79-75qm-gwjr 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-VN61PHA0: Gitea LFS Deploy-Ke...

ANT-2026-V6YZYDKK · FreeType2 · Stack Buffer Overflow

stack-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-V6YZYDKK: Stack buffer overflow via pop aft...

ANT-2026-QRPT15J8 · duckdb · Stack-buffer-overflow

stack-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 Trail of Bits. ANT-2026-QRPT15J8: Stack-buffer-overflow in...

ANT-2026-X3EB6DN3 · expat · heap-buffer-overflow

heap-buffer-overflow medium CVE-2026-56132 GHSA-425r-vwq2-26qv 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 Trail of Bits. ANT-2026-X3EB6DN3...

ANT-2026-8HYRCFKW · DuckDB · 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-2026-8HYRCFKW: Integer overflow to heap buffer...

ANT-2026-QRYCJNAP · dnsmasq · Denial-of-service

denial-of-service medium CVE-2026-13002 CVE-2026-4890 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 Trail of Bits. ANT-2026-QRYCJNAP:...

ANT-2026-PCBAKVPB · dnsmasq · Heap-buffer-overflow

heap-buffer-overflow high CVE-2026-4892 GHSA-m62j-63mf-xr95 Severity Claude high · Security research firm high · Maintainer high Discovered by an unreleased Anthropic model REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits...

ANT-2026-FW0V6SAJ · dhis2-core · SQL Injection

sql-injection high CVE-2026-55084 Severity Claude high · Security research firm high · Maintainer - REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ophion Security. ANT-2026-FW0V6SAJ: SQL Injection via Unquoted Column Name in SqlView Filter Parameter...

ANT-2026-CJQWKW82 · postgres/postgres · Denial-of-service

denial-of-service high CVE-2026-6479 GHSA-hwfh-mh4f-m67f Severity Claude high · Security research firm high · Maintainer high Discovered by Claude Opus 4.6 REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Calif. ANT-2026-CJQWKW82: Pre-auth unbounded...

ANT-2026-VVPEMVDE · ClamAV · Integer Overflow

integer-overflow high CVE-2026-20213 GHSA-rjvx-x4g3-vr6w 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-VVPEMVDE: Intege...

ANT-2026-19SGCVZZ · Alembic · 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-2026-19SGCVZZ: Heap buffer overflow in Ogawa...

ANT-2026-HFGGE6HR · asterisk/asterisk · stack_buffer_overflow

stack-buffer-overflow critical GHSA-589g-qgf8-m6mx 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-D7FC4YDQ · rabbitmq-c · Heap-buffer-overflow

heap-buffer-overflow high Severity Claude critical · Security research firm high · Maintainer - Discovered by Claude Opus 4.6 REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-D7FC4YDQ: Heap-buffer-overflow in rabbitmq-c libFuzz...

ANT-2026-Z477W54M · ClamAV · Integer Underflow

integer-underflow high CVE-2026-20214 GHSA-86w7-h9x4-hpxv 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-Z477W54M:...

ANT-2026-8DRZW7VM · ClamAV · Integer Overflow

integer-overflow high CVE-2026-20215 GHSA-6gff-7f37-2v35 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-2026-8DRZW7VM: Intege...

ANT-2026-M8R2AWBV · linux · other

other high Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-M8R2AWBV: ksmbd SMB-Direct: pre-auth remote heap overflow via preferredsendsize signedness mintint Pre-auth remot...

ANT-2026-14WRNADB · linux · use-after-free

use-after-free high Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-14WRNADB: ksmbd: use-after-free of shareconf via multichannel LOGOFF race SMB3 multichannel: SESSIONLOGO...

ANT-2026-B4Z27MGE · GPAC · other

other high Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-B4Z27MGE: gpac/fuzzroute/20251128202533unknown/ GPAC's DASH manifest handling extracts the printf-style specifier...

ANT-2026-G1XC2M5V · CGIF · other

other high Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-G1XC2M5V: cgif/cgiffuzzer/20251218020844unknown/ cgif's LZW encoder computes a conservative upper bound for the...