CVE-2026-109267 ImageMagick CVE debrief

Who should care

Defenders responsible for ImageMagick installations, particularly those using versions before 6.9.13-57 and 7.x before 7.1.2-32, should assess exposure and prioritize patching or mitigation.

Why it matters

Defenders should care about CVE-2026-109267 because it can lead to denial-of-service attacks through crafted MSL images, requiring patching or mitigation to prevent exploitation.

• Potential denial-of-service attacks through crafted MSL images
• Required patching or mitigation to prevent vulnerability exploitation
• Need for monitoring and restricting access to MSL files

Technical summary

The vulnerability is caused by an incorrect depth check in the MSL decoder, leading to a stack overflow when processing crafted MSL images. This technical issue allows attackers to supply a set of crafted MSL images that exhaust the stack when one of them is read, crashing the process and causing a denial of service. Affected product context includes ImageMagick installations using versions before 6.9.13-57 and 7.x before 7.1.2-32. Defenders should focus on patching or mitigating this vulnerability to prevent potential denial-of-service attacks.

Defensive priority

Defenders should prioritize patching or mitigating this vulnerability to prevent potential denial-of-service attacks.

Recommended defensive actions

• Patch ImageMagick to version 6.9.13-57 or later
• Patch ImageMagick to version 7.1.2-32 or later
• Restrict access to MSL files
• Monitor for suspicious MSL file processing
• 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

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description and affected versions. The vulnerability has been publicly disclosed and requires verification of affected ImageMagick deployments. Defenders should review official advisories and CVE records to validate affected scope, severity, and vendor guidance. Evidence limits and source grounding indicate potential denial-of-service attacks through crafted MSL images.

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.