CVE-2026-50161 libre: Integer overflow in websock_decode() masked frame length check leads to heap buffer overflow

libre is a generic library for real-time communications with asynchronous input and output support. Prior to 4.8.1, the websockdecode function in src/websock/websock.c contains an integer overflow when validating a masked WebSocket frame that uses the 64-bit extended length encoding. The expressi...

CVE-2026-50161 libre: Integer overflow in websock_decode() masked frame length check leads to heap buffer overflow

libre is a generic library for real-time communications with asynchronous input and output support. Prior to 4.8.1, the websockdecode function in src/websock/websock.c contains an integer overflow when validating a masked WebSocket frame that uses the 64-bit extended length encoding. The expressi...

CVE-2026-50161

libre (a real-time communications library) contains an integer overflow in websock_decode() (src/websock/websock.c) when validating a masked WebSocket frame using 64-bit extended length encoding. The expression 4 + hdr->len wraps when hdr->len is close to UINT64_MAX, bypassing the mbuf_get_...

UBUNTU-CVE-2026-63639

Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's RESTORE command accepts a malformed RDB stream payload that assigns one Pending Entry List NACK to multiple consumers during stream consumer-group deserialization, causing a use-after-free when...

CVE-2026-63632 ONNX: Heap-Buffer-Overflow READ in Gemm Version Converter Adapter via Undersized Input Shape

Open Neural Network Exchange ONNX is an open standard for machine learning interoperability. From 1.3.0 until 1.22.0, onnx.versionconverter.convertversion can perform an out-of-bounds read in Gemm76::adaptgemm76 in onnx/versionconverter/adapters/gemm76.h when a Gemm node has input tensors with...

CVE-2026-63632 ONNX: Heap-Buffer-Overflow READ in Gemm Version Converter Adapter via Undersized Input Shape

Open Neural Network Exchange ONNX is an open standard for machine learning interoperability. From 1.3.0 until 1.22.0, onnx.versionconverter.convertversion can perform an out-of-bounds read in Gemm76::adaptgemm76 in onnx/versionconverter/adapters/gemm76.h when a Gemm node has input tensors with...

CVE-2026-63632

onnx versions 1.3.0–1.22.0 have an unchecked rank access in Gemm_7_6::adapt_gemm_7_6() (gemm_7_6.h:41) when downgrading opset 7→6; a Gemm node with undersized input tensors triggers a 16-byte heap-buffer-overflow READ. A working 186-byte PoC exists. Upgrade to onnx ≥1.22.0.

CVE-2026-40468 affecting package gawk for versions less than 5.2.2-2

CVE-2026-40468 affecting package gawk for versions less than 5.2.2-2. A patched version of the package is available...

CVE-2026-19968

A flaw was found in Open Asset Import Library Assimp. A remote attacker could exploit a heap-based buffer overflow vulnerability in the ReadFaces3DGSMDL7 function of the 3DGS MDL7 Model Parser by providing a specially crafted 3DGS MDL7 model file. This could lead to a denial of service. Mitigatio...

ANT-2026-VTJ2W5KM · graphicsmagick · 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-VTJ2W5KM: Heap-buffer-overflow in pcx.c:1186 A...

ANT-2026-GY2SF1XW · grok · 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-GY2SF1XW: Heap-buffer-overflow in...

Amazon Linux 2023 : freerdp, freerdp-devel, freerdp-libs (ALAS2023-2026-2053)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2053 advisory. FreeRDP before 3.28.0 affected outlength, so out-of-bounds bytes are written before the bounds check. On the server side, when a client selects RDP Standard Security, the encrypted client rand...

AlmaLinux 8 : libXfont2 (ALSA-2026:55446)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:55446 advisory. libxfont2: Font Server Client encoding Out-Of-Bounds Read/Write CVE-2026-59679 libxfonts2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Fo...

Amazon Linux 2023 : spice-vdagent (ALAS2023-2026-2061)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2061 advisory. A flaw was found in spice-vdagent. A malicious or compromised SPICE host can trigger an integer overflow by sending a specially crafted message. This vulnerability can lead to a heap buffer...

MiracleLinux 8 : libXfont2-2.0.3-2.el8_10.3 (AXSA:2026-1563:03)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1563:03 advisory. libxfont2: Font Server Client encoding Out-Of-Bounds Read/Write CVE-2026-59679 libxfonts2: libXfont2: Privilege Escalation via Heap Buffer Overflow ...

Linux Distros Unpatched Vulnerability : CVE-2026-74404

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: ccp - Fix snpfilterreservedmemregions off-by-one Sashiko notes: regarding the bounds check in snpfilterreservedmemregions called via walkiomemresdesc:...

ANT-2026-SJ7ZVBQB · ffmpeg · Heap-buffer-overflow

heap-buffer-overflow medium Severity Claude high · Security research firm medium · Maintainer - Discovered by Claude Opus 4.6 REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-SJ7ZVBQB: Heap-buffer-overflow in mpeg.h:70 While...

ANT-2026-NGTJ413W · ffmpeg · 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-NGTJ413W: This is a genuine heap-buffer-overflow...

ANT-2026-0Y1VS937 · ffmpeg · Heap Buffer Overflow

heap-buffer-overflow high Severity Claude high · Security research firm - · Maintainer - REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-0Y1VS937: Heap underflow in H.264 xchgmbborder via slicenum/sentinel collision In FFmpeg's H.264 decoder, slicetable h264dec.h is a...

ANT-2026-0GNNMNPS · wabt · 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 Ada Logics. ANT-2026-0GNNMNPS: Heap-buffer-overflow in wabt Wh...