CVE-2026-106064 Red Hat CVE debrief

Who should care

Defenders in environments where image processing is common, especially those using GIMP for image editing, should prioritize verifying and updating GIMP installations. This includes assessing exposure, prioritizing patching in high-risk environments, and reviewing compensating controls for exposed systems.

Why it matters

Defenders should prioritize verifying and updating GIMP installations, especially in environments where image processing is common, due to the potential for denial of service and exploitation.

• Potential for denial of service due to buffer overflow
• Need for verification of GIMP installations and updates
• Potential for exploitation in environments with unpatched GIMP

Technical summary

The heap-based buffer overflow in GIMP’s GIF export plug-in occurs when exporting an image with very large width and height, causing a 32-bit overflow when computing the pixel buffer size. This happens because the plug-in allocates a buffer based on the wrapped value, while GEGL writes using the true image extent, rooted in integer overflow. Defenders should focus on verifying and updating GIMP installations, particularly in environments where image processing is common, to mitigate potential denial of service and exploitation.

Defensive priority

Defenders should prioritize verifying and updating GIMP installations, especially in environments where image processing is common.

Recommended defensive actions

• Verify GIMP installations for updates
• Assess exposure in environments with image processing
• Prioritize patching in high-risk environments
• 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 source item provide details on the heap-based buffer overflow in GIMP’s GIF export plug-in. The issue arises from exporting an image with very large width and height, causing a 32-bit overflow when computing the pixel buffer size. Defenders should verify GIMP installations for updates, especially in environments where image processing is common. The CVE Program record and NVD detail page offer additional context.

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.