CVE-2026-18090

An exploitable integer overflow vulnerability exists in the tiff_image_parse functionality of Gdk-Pixbuf 2.36.6 when compiled with Clang. A specially crafted tiff file can cause a heap-overflow resulting in remote code execution.

A heap overflow vulnerability exists in the gdk_pixbuf__jpeg_image_load_increment functionality of Gdk-Pixbuf 2.36.6. A specially crafted jpeg file can cause a heap overflow resulting in remote code execution.

An integer underflow in the load_resources function in io-icns.c in gdk-pixbuf can be exploited by context-dependent attackers to cause a denial of service through a crafted image entry size in an ICO file.

The gdk-pixbuf-thumbnailer.c file in gdk-pixbuf contains a vulnerability that allows context-dependent attackers to cause a denial of service through a NULL pointer dereference, leading to application crashes.

The OneLine32 function in io-ico.c in gdk-pixbuf before version 2.35.3 allows remote attackers to cause a denial of service (out-of-bounds write and crash) via crafted dimensions in an ICO file.

Multiple integer overflows in the pixops_composite_nearest, pixops_composite_color_nearest, and pixops_process functions in gdk-pixbuf before version 2.33.1 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted image.

Heap-based buffer overflow in the gdk_pixbuf_flip function in gdk-pixbuf-scale.c in gdk-pixbuf 2.30.x allows remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted BMP file.

A flaw was found in gdk-pixbuf. When loading a specially crafted JPEG image containing chunked ICC profile markers, an error during ICC profile parsing can leave stale size metadata after the profile buffer is freed. A subsequent allocation in the same decode can cause an out-of-bounds write, potentially crashing the application. To exploit this flaw, an application using gdk-pixbuf must process the malicious JPEG image. Affected version >= 2.26.4.

An out-of-bounds read vulnerability was found in the gdk-pixbuf library when parsing a specially crafted ICO file with pixel values exceeding the defined palette range. An attacker can extract heap content via the generated output, such as a thumbnail.

A heap-based buffer overflow vulnerability was found in the gdk-pixbuf library's JPEG image loader due to improper validation of color component counts when processing a specially crafted JPEG image. A remote attacker can exploit this flaw without user interaction, for example, via thumbnail generation, leading to application crashes and denial of service (DoS).