CVE-2026-18307

A flaw was found in GIMP. This heap-based buffer overflow vulnerability in the TIF file parsing component allows a remote attacker to execute arbitrary code. User interaction is required, as the target must open a specially crafted malicious TIF file. Successful exploitation can lead to arbitrary code execution in the context of the current process.

This vulnerability is rated as Important severity because successful exploitation allows arbitrary code execution within the privileges of the targeted user account, though it requires user interaction rather than remote unauthenticated access. In typical Red Hat Enterprise Linux environments, GIMP is an optional desktop application rather than an automated or network-facing service, limiting the attack surface to interactive workstation sessions. Because the defect triggers only when processing untrusted TIFF graphics, exposure remains confined to the user session without providing automatic elevation to root privileges.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To mitigate this vulnerability, users should avoid opening untrusted TIF image files with GIMP. If GIMP is not required, consider removing the package from the system. For systems where GIMP is necessary, exercise caution when handling TIF files from unknown or suspicious sources.