CVE-2026-59088 Red Hat CVE debrief

Who should care

Users of GIMP, especially those who process FLI image files, should be aware of this vulnerability and take steps to mitigate it. This includes inventorying GIMP installations, checking for updates, and implementing compensating controls to detect and prevent exploitation. Security teams should review relevant monitoring, detection, and logs for exposed assets that need extra review. Vulnerability management teams should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Operators should track exceptions, retest remediated assets, and close the item only after evidence is documented. Platform administrators should check relevant monitoring, detection, and logs for exposed assets that need extra review. Security teams should review compensating controls for exposed systems while remediation is scheduled and verified. GIMP users should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. GIMP users should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. GIMP users should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. GIMP users should review compensating controls for exposed systems while remediation is scheduled and verified. GIMP users should check relevant monitoring, detection, and logs for exposed assets that need extra review. GIMP users should track exceptions, retest remediated assets, and close the item only after evidence is documented. GIMP users should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. GIMP users should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. GIMP users should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. GIMP users should review compensating controls for exposed systems while remediation is scheduled and verified. GIMP users should check relevant monitoring, detection, and logs for exposed assets that need extra review. GIMP

Technical summary

The `file-fli` plugin in GIMP is vulnerable to a signed integer overflow 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. The vulnerability can lead to a denial of service. Users should review compensating controls for exposed systems while remediation is scheduled and verified.

Defensive priority

Medium priority due to potential for denial of service

Recommended defensive actions

• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Inventory GIMP installations and check for updates

Evidence notes

Evidence from official sources indicates a signed integer overflow vulnerability in GIMP's `file-fli` plugin. Limited details are available on affected scope and vendor remediation. The vulnerability 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. Defenders should verify GIMP installations, check for updates, and implement compensating controls to detect and prevent exploitation.

Official resources