Executive brief
GIMP is a widely-used image editing application that supports various file formats including PSP (Paint Shop Pro) files. A heap-based buffer overflow vulnerability in GIMP's PSP file loader can be triggered when opening a malicious PSP file, potentially leading to application crashes or arbitrary code execution on the user's system.
Technical details
A heap-based buffer overflow exists in GIMP's PSP file loader due to a mismatch between the allocated buffer size and the amount of data decompressed when processing compressed selection channels. The vulnerability is triggered via network-reachable attack vector (user must open a malicious PSP file), requiring user interaction. An attacker can craft a malicious PSP file that, when opened in GIMP, causes memory corruption leading to a crash (denial of service) or arbitrary code execution. The issue is classified as CWE-787 (Out-of-bounds Write). No mitigation or patch information is currently available according to Red Hat.
Affected products
- GIMP (GNOME) GIMP <UNKNOWN>
Timeline
- 2026-09-14: disclosed
- other: Not reported as exploited in the wild as of disclosure date