CVE-2026-106065 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 and patching. This includes reviewing image processing workflows, implementing compensating controls, and monitoring for potential security incidents.

Why it matters

Defenders should prioritize verifying and patching GIMP installations, especially in environments where untrusted images are processed, due to the potential for buffer overflow and data corruption.

• Potential for denial of service due to buffer overflow
• Need for verification of GIMP installations and image processing workflows
• Possible data corruption or unexpected behavior when processing untrusted images

Technical summary

The vulnerability is caused by a heap-based buffer overflow in GIMP’s PCX export plug-in. When processing images with extremely large width and height, the buffer allocation uses overflowing 32-bit width * height arithmetic, while subsequent GEGL operations use the full extent after integer overflow in size calculation. This could lead to denial of service and data corruption if exploited. Defenders should prioritize verifying and patching GIMP installations, especially in environments where untrusted images are processed.

Defensive priority

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

Recommended defensive actions

• Verify GIMP installations for potential exposure
• Assess image processing workflows for untrusted input
• Consider implementing compensating controls for image processing environments
• Review 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
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and source item provide details on the heap-based buffer overflow in GIMP’s PCX export plug-in. However, specific version information and remediation steps are not provided. To verify and patch, defenders should review the official advisory or CVE record, assess image processing workflows for untrusted input, and consider implementing compensating controls for image processing environments. The CVE Program record and NIST NVD detail page offer additional information.

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.