CVE-2026-112257

A heap out-of-bounds read and write vulnerability exists in GIMP within the PSD thumbnail resource loader (specifically load_resource_1033). The flaw occurs because the loader performs a BGR-to-RGB channel swap using a fixed 3-byte stride without verifying that the JPEG thumbnail is actually in R...

CVE-2026-112257 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...