CVE-2026-62439 Red Hat CVE debrief

Who should care

Defenders responsible for GIMP installations, especially in environments where untrusted images are processed, should assess exposure and prioritize verification. This includes operators, platform administrators, vulnerability management teams, and security teams. They should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance. Prioritization is crucial for environments processing untrusted images, as the

Why it matters

CVE-2026-62439 is a high-severity vulnerability in GIMP's file-pvr plug-in that can lead to potential arbitrary code execution or Denial of Service (DoS). Defenders should prioritize verifying GIMP installations, especially in environments where untrusted images are processed.

• Potential arbitrary code execution
• Potential Denial of Service (DoS) via application crash
• Verification of GIMP installations and updates required
• Remediation priority for environments processing untrusted images

Technical summary

An integer overflow occurs in the GIMP file-pvr plug-in when calculating memory buffer sizes for image dimensions, potentially leading to a heap-based buffer overflow via specially crafted PowerVR (.pvr) files. The vulnerability can be triggered by tricking a user into opening or previewing a specially crafted PowerVR (.pvr) file, which can result in arbitrary code execution or a Denial of Service (DoS) via an application crash. The issue is caused by inadequate validation of image dimensions in the file-pvr plug-in

Defensive priority

Defenders should prioritize verifying GIMP installations, especially in environments where untrusted images are processed.

Recommended defensive actions

• Verify GIMP installations for updates and patches
• Restrict processing of untrusted PowerVR (.pvr) files
• Monitor GIMP vendor advisories for further guidance
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited. Further verification is required to determine the full scope of the vulnerability and potential impacts. Defenders should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance. The vulnerability has a high CVSS score of 7 and is classified as HIGH severity. There is no information on known exploits or attacks, but defenders should prioritize GIMP

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.