CVE-2026-54758 Notepad++: Stack Buffer Overflow in expandNppEnvironmentStrs

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the expandNppEnvironmentStrs function in PowerEditor/src/WinControls/StaticDialog/RunDlg/RunDlg.cpp copies a Notepad++ variable name between $ and into the fixed-size wchart strMAXPATH stack buffer without bounding the m loop...

MINI-F7P2-FF8M-3HW4

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CVE-2026-54758

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the expandNppEnvironmentStrs function in PowerEditor/src/WinControls/StaticDialog/RunDlg/RunDlg.cpp copies a Notepad++ variable name between $ and into the fixed-size wchart strMAXPATH stack buffer without bounding the m loop...

MINI-Q5H2-722C-5RP3

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MINI-RHQQ-JRG5-GQXC

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ANT-2026-F8AZ7X04 · wireshark · global-buffer-overflow

global-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-F8AZ7X04: global-buffer-overflow in wireshark In...

ANT-2026-K6DHGAYS · webkit · Heap-buffer-overflow

heap-buffer-overflow critical 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 Trail of Bits. ANT-2026-K6DHGAYS: Heap-buffer-overflow in...

ANT-2026-7ZJGE8XJ · UPX · 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-2026-7ZJGE8XJ: Heap buffer overflow in unshlib1 readx d...

ANT-2026-1MRWDJYC · Simd · Integer Underflow

integer-underflow 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-2026-1MRWDJYC: Integer underflow in AVX2 BgraToBgr causing...

ANT-2026-SBF8X04Q · SELinux · Type Confusion

type-confusion 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-SBF8X04Q: Type confusion in CIL sensitivity alias...

ANT-2026-K2T27KG9 · SELinux · 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-K2T27KG9: Stack buffer overflow in libsepol...

ANT-2026-49KSKQPG · SELinux · 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-2026-49KSKQPG: Heap buffer overflow in libsepol mapebitmap...

ANT-2026-ZYEZKB5Y · OpenSC · 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-ZYEZKB5Y: Stack buffer overflow in...

ANT-2026-DD4RKCBA · OpenSC · 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-DD4RKCBA: Stack buffer overflow in...

ANT-2026-2BX2DMM1 · OpenSC · 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-2026-2BX2DMM1: Stack buffer overflow in...

ANT-2026-3T6Q6WE9 · mpv · 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-2026-3T6Q6WE9: Integer overflow in scaletempo audio filter...

ANT-2026-WG9N02WM · libjxl · 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-WG9N02WM: Heap buffer overflow in fast...

ANT-2026-3CJT2BP4 · libjxl · 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-2026-3CJT2BP4: Heap buffer overflow in JPEG...

ANT-2026-R8N72JR9 · libarchive · 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-R8N72JR9: Off-by-one heap buffer overflow in...

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:...