CVE-2026-5755 Denial of service via crafted TIFF file upload

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.2, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate the TIFF IFD offset in the image header before allocating memory, which allows authenticated users with file upload or posting permissions to cause a denial of service serve...

PT-2026-42751

Name of the Vulnerable Software and Affected Versions Mattermost version 11.6.0 Mattermost version 11.5.3 Mattermost version 11.4.4 Mattermost version 10.11.14 Description Authenticated users with file upload or posting permissions can cause a denial of service resulting in server Out of Memory O...

Mattermost 安全漏洞

Mattermost is an open-source collaboration platform developed by the American company Mattermost. Vulnerabilities exist in versions of Mattermost 11.6.0 and earlier 11.6.x series, as well as versions prior to 11.5.3 11.5.x series, 11.4.4 and earlier 11.4.x series, and 10.11.14 and earlier 10.11.x...

Astra Linux – Vulnerability in Tiff

A memory leak flaw was discovered in Libtiff’s tiffcrop utility. This issue occurs when tiffcrop operates on a TIFF image file, allowing an attacker to deliver a crafted TIFF image file to the tiffcrop utility, which causes this memory leak issue. As a result, the application crashes, potentially...

Astra Linux – Vulnerability in libraw

In LibRaw, there is a out-of-bounds read vulnerability within the gethuffmandiff function libraw\src\x3f\x3futilspatched.cpp when reading data from an image file...

Astra Linux – Vulnerability in openimageio

There is a heap-based buffer overflow vulnerability in the tile decoding code of the TIFF image parser in OpenImageIO’s master-branch-9aeece7a and v2.3.19.0. A specially crafted TIFF file can lead to out-of-bounds memory corruption, which may result in arbitrary code execution. An attacker can...

Astra Linux – Vulnerability in libjpeg-turbo

Libjpeg-turbo 1.5.2 has a NULL Pointer Dereference issue in files jdpostct.c and jquant1.c, due to a malicious JPEG file...

Astra Linux – Vulnerability in exiv2

In Exiv2 versions 0.27.1, an uncontrolled memory allocation for PngChunk::parseChunkContent allows an attacker to cause a denial of service crash due to a std::badalloc exception through a crafted PNG image file...

Astra Linux – Vulnerability in pillow

A issue was discovered in Pillow before version 8.2.0. PSDImagePlugin.PsdImageFile lacked a sanity check on the number of input layers relative to the size of the data block. This could lead to a denial-of-service attack when using Image.open prior to Image.load...

Astra Linux – Vulnerability in TIF format

The processCropSelections function in the tools/tiffcrop.c file of LibTIFF, as of version 4.5.0, has a heap-based buffer overflow vulnerability. This vulnerability occurs due to a crafted TIFF image being written with a size of 307203 bytes...

Astra Linux – Vulnerability in udisks2

A vulnerability has been discovered in udisks2. This flaw allows an attacker to submit a specially crafted image file/USB, resulting in kernel panic. The greatest threat posed by this vulnerability is to system availability...

Astra Linux – Vulnerability in Tiff

LibTIFF 4.4.0 contains an out-of-bounds write vulnerability in TIFFmemcpy in libtiff/tifunix.c:346, when called from extractImageSection, located at tools/tiffcrop.c:6826. This vulnerability allows attackers to cause a denial-of-service attack through a crafted TIFF file. For users who compile...

RHEL 10 : libtiff (RHSA-2026:19586)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:19586 advisory. The libtiff packages contain a library of functions for manipulating Tagged Image File Format TIFF files. Security Fixes: libtiff: libtiff: Arbitra...

CVE-2026-32739

A flaw was found in libheif, a HEIF and AVIF file format decoder and encoder. A remote attacker could exploit this vulnerability by providing a specially crafted HEIF High Efficiency Image File Format sequence file. This would trigger an infinite loop during file parsing, consuming 100% CPU...

CVE-2026-32740

A flaw was found in libheif, a library for decoding and encoding HEIF and AVIF image files. This heap-buffer-overflow vulnerability allows a remote attacker to write arbitrary data beyond the intended memory boundary. By crafting a malicious HEIF/AVIF file with a specific grid tile configuration,...

CVE-2026-32814

A flaw was found in libheif, a HEIF and AVIF file format decoder and encoder. When processing a specially crafted HEIF or AVIF image containing a corrupted grid tile, the library fails to properly initialize memory. This can lead to an information disclosure, where uninitialized heap memory,...

DEBIAN-CVE-2026-32738

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequence file with samplesperchunk=0 in the stsc box causes an unsigned integer underflow in the Chunk constructor mlastsample = 0 + 0 - 1 = UINT32MAX, mapping all samples to an empty...

CVE-2026-32739

libheif (HEIF/AVIF decoder) is affected through versions 1.21.2 and earlier, where a crafted 800-byte HEIF sequence file can trigger an infinite loop in Box_stts::get_sample_duration() during parsing, causing 100% CPU DoS with no progress and no crashログ. The issue is triggered on file open and is...

CLSA-2026-1779193855 ImageMagick: Fix of CVE-2026-42050

CVE-2026-42050: fix stack buffer overflow in XTileImage when loading malicious MIFF in display tool...

ALSA-2026:19359 Important: openexr security update

OpenEXR is an open-source high-dynamic-range floating-point image file format for high-quality image processing and storage. This document presents a brief overview of OpenEXR and explains concepts that are specific to this format. This package containes the binaries for OpenEXR. Security Fixes:...