CVE-2026-59088

A flaw was found in GIMP. A signed integer overflow vulnerability exists in the file-fli plugin when processing FLI image files. This occurs due to an incorrect calculation during memory allocation for image buffers, where the multiplication of image width and height can exceed the maximum integer value. A remote attacker could exploit this by tricking a user into opening a specially crafted FLI file, leading to the application crashing and resulting in a denial of service.

This Moderate impact flaw in GIMP's FLI file processing plugin can lead to a denial of service. The vulnerability requires user interaction, as an attacker must convince a local user to open a specially crafted FLI image file, which would cause the GIMP application to crash due to an integer overflow during memory allocation.

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 issue, users should avoid opening FLI image files from untrusted sources. As this vulnerability requires user interaction to open a specially crafted file, exercising caution with the origin of FLI files can prevent the denial of service.