CVE-2026-18305

A flaw was found in GIMP, an image manipulation program. This vulnerability allows a remote attacker to execute arbitrary code on an affected system. Exploitation requires user interaction, where the target must open a specially crafted TIF (Tagged Image File Format) file. The flaw occurs during TIF file parsing due to improper validation of user-supplied data, which can lead to an integer overflow and enable the attacker to run malicious code.

This vulnerability is rated as having an Important impact because successful exploitation can allow arbitrary code execution with the privileges of the active desktop user, potentially compromising personal files and session data. While exploitation requires user interaction to open a malicious image file, the potential for complete process takeover elevates the severity above Moderate. In standard Red Hat Enterprise Linux environments, GIMP is an optional desktop package rather than a default system service, confining the attack surface primarily to graphical workstation installations.

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, avoid opening TIF image files from untrusted or unknown sources in GIMP. This operational control prevents the application from processing malicious input that could lead to arbitrary code execution.