CVE-2026-27654-PoC

CVE-2026-27654 – nginx ngxhttpdavmodule DAV Alias Path Handling PoC This repository provides a proof‑of‑concept exploit for CVE‑2026‑27654 , a heap‑overflow vulnerability in the ngxhttpdavmodule of nginx. The bug arises from a size‑t underflow when handling MOVE/COPY requests with specially craft...

CVE-2026-27654

CVE-2026-27654 NGINX ngxhttpdavmodule における sizet アンダーフローによるヒープバッファオーバーフロー リモートDoS / 潜在的なRCE 説明 src/http/modules/ngxhttpdavmodule.c 内の ngxhttpdavcopymovehandler は、 Destination ヘッダのURIパスコンポーネントからロケーションプレフィックスの長さを引くことで、 宛先URIの長さを計算します。どちらの値も sizet unsigned 64-bit です。 宛先パスがロケーションプレフィックスより短い場合、減算結果は 0...

AZL-99681 CVE-2026-80798 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: reject PDUs shorter than the LLCP header Every LLCP PDU begins with a two-byte header DSAP/SSAP + PTYPE, but the receive path never checked that a frame is at least LLCPHEADERSIZE bytes before parsing it. nfcllcprxskb...

EUVD-2026-71235

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: bound the connectsn TLV walk to the skb Commit 27256cdb290e "nfc: llcp: bound SNL TLV parsing to the skb and add length checks" fixed the unbounded TLV walk in nfcllcprecvsnl, and commit d8bd2dedbde5 "nfc: llcp: fix OO...

USN-8724-1: rabbitmq-c vulnerabilities

It was discovered that the rabbitmq-c command-line tools only accepted credentials on the command line, making them visible to other local users through the process list. An attacker could possibly use this to obtain sensitive credentials. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04...

openSUSE 16 Security Update : wicked (openSUSE-SU-2026:21669-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21669-1 advisory. Changes in wicked: - Fix two OOB reads in nicaptureinspectudpheader and improve: - Reject packets with iplen ihl to avoid a sizet underflow of t...

CVE-2026-50278

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions prior to 2.3.2.1 have a CIccEmbedIO::Read8 sizet underflow. The issue arises due to an embedded-profile read defect when parsing ICC profiles containing icSigEmbeddedV5ProfileTag data with...

CVE-2026-50278 iccDEV: CIccEmbedIO::Read8() size_t underflow

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions prior to 2.3.2.1 have a CIccEmbedIO::Read8 sizet underflow. The issue arises due to an embedded-profile read defect when parsing ICC profiles containing icSigEmbeddedV5ProfileTag data with...

CVE-2026-50278

iccDEV versions prior to 2.3.2.1 contain a size_t underflow in CIccEmbedIO::Read8(), triggered when parsing ICC profiles that include icSigEmbeddedV5ProfileTag data with icSigEmbeddedProfileType payloads. The defect is an embedded-profile read issue that can lead to denial of service (availabilit...

CVE-2026-50278 iccDEV: CIccEmbedIO::Read8() size_t underflow

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions prior to 2.3.2.1 have a CIccEmbedIO::Read8 sizet underflow. The issue arises due to an embedded-profile read defect when parsing ICC profiles containing icSigEmbeddedV5ProfileTag data with...

EUVD-2026-63990

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions prior to 2.3.2.1 have a CIccEmbedIO::Read8 sizet underflow. The issue arises due to an embedded-profile read defect when parsing ICC profiles containing icSigEmbeddedV5ProfileTag data with...

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-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...

CVE-2026-72367 iomap: guard io_size EOF trim against concurrent truncate underflow

In the Linux kernel, the following vulnerability has been resolved: iomap: guard iosize EOF trim against concurrent truncate underflow iomap: fix zero padding data issue in concurrent append writes changed ioend accounting so that iosize tracks only valid data within EOF. This trims iosize when a...

EUVD-2026-59266

In the Linux kernel, the following vulnerability has been resolved: iomap: guard iosize EOF trim against concurrent truncate underflow iomap: fix zero padding data issue in concurrent append writes changed ioend accounting so that iosize tracks only valid data within EOF. This trims iosize when a...

AZL-94499 CVE-2026-19028 affecting package hdf5 1.14.6-4

H5Zfilterfletcher32 in H5Zfletcher32.c in HDF5 through 2.3.0 computes the data length to checksum by subtracting the 4-byte trailing checksum size from the input buffer size without checking that the buffer is at least 4 bytes, allowing a sizet underflow. This allows attackers to cause a denial o...

CVE-2026-19028

H5Zfilterfletcher32 in H5Zfletcher32.c in HDF5 through 2.3.0 computes the data length to checksum by subtracting the 4-byte trailing checksum size from the input buffer size without checking that the buffer is at least 4 bytes, allowing a sizet underflow. This allows attackers to cause a denial o...

CVE-2026-18839 Popt-devel: popt-static: size_t underflow in singleoptionhelp

An integer underflow was found in the popt library when formatting help text for option tables that exceed the terminal width. A local user who can cause an application to print help under those conditions may cause that application to crash or fail to display help, resulting in a denial of servi...

CVE-2026-63892

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Reject dirlen length u16 widened to sizet. Two distinct OOB conditions follow when entry-length uuid, ... which always reads 4 dwords from diroffset. tbpropertyentryvalid only enforces diroffset +...

CVE-2026-63892 thunderbolt: property: Reject dir_len < 4 to prevent size_t underflow

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Reject dirlen length u16 widened to sizet. Two distinct OOB conditions follow when entry-length uuid, ... which always reads 4 dwords from diroffset. tbpropertyentryvalid only enforces diroffset +...