CVE-2026-112257 is a vulnerability in Red Hat Enterprise Linux (RHEL)
Published on October 19, 2026
Gimp: gimp: heap out-of-bounds read/write in psd thumbnail loader (load_resource_1033)
A flaw was found in GIMP. The PSD thumbnail resource loader performs a BGR-to-RGB channel swap with a fixed 3-byte stride and does not verify that the JPEG thumbnail is RGB. A crafted grayscale PSD thumbnail can cause a heap out-of-bounds read and write in the plug-in process, leading to a crash and potentially arbitrary code execution when the victim browses or opens the file.
Vulnerability Analysis
CVE-2026-112257 can be exploited with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-112257 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2026-112257
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Affected Versions
Red Hat Enterprise Linux 9:- Version 2:3.0.4-4.el9_8.15 and below * is unaffected.