gdk-pixbuf 2.26.4+ OOB Write via Malformed JPEG ICC Profile
CVE-2026-81893 Published on August 27, 2026
Gdk-pixbuf: gdk-pixbuf: invalid write in jpeg icc profile parser on error recovery
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
Vulnerability Analysis
CVE-2026-81893 can be exploited with local system access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-81893 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-81893
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