CVE-2026-58379: gimp Heap-based Buffer Overflow

Vulnerability summary

CVE-2026-58379 is a high (CVSS 7.3) Heap-based Buffer Overflow vulnerability in gimp. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.3% of scored vulnerabilities.

Timeline

1. 03-07-2026
   PublishedVulnerability first disclosed.
2. 12-10-2026
   Last modifiedVulnerability information updated.

Description

A flaw was found in GIMP's Paint Shop Pro (PSP) file format parser. This heap buffer overflow vulnerability allows a remote attacker to cause arbitrary code execution or a denial of service (DoS) by tricking a user into opening a specially crafted PSP image file. The vulnerability occurs because the software incorrectly calculates buffer sizes when processing low bit-depth images, leading to an overwrite of adjacent memory.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().