CVE-2026-107210 ImageMagick CVE debrief

Who should care

ImageMagick administrators, developers, and users who process MAT images should assess exposure and apply patches. They should also review security policies and resource restrictions for ImageMagick. Additionally, they should monitor for unusual disk space consumption patterns and assess potential denial-of-service (DoS) risks.

Why it matters

CVE-2026-107210 is a medium-severity vulnerability in ImageMagick's MAT decoder that allows for policy bypass and excessive disk space consumption. Defenders should assess exposure, apply patches, and monitor for unusual activity.

• Verify and limit disk space consumption by ImageMagick processes.
• Assess and mitigate potential denial-of-service (DoS) risks.
• Review and update security policies for resource restrictions.
• Monitor for unusual activity and implement compensating controls.

Technical summary

ImageMagick's MAT decoder can create temporary files larger than configured security-policy limits when reading highly compressed MAT images, bypassing resource restrictions and consuming excessive disk space. This issue affects ImageMagick versions prior to 7.1.2-30 and 6.9.13-55. The vulnerability is triggered when processing highly compressed MAT images. Successful exploitation could result in policy bypass and excessive disk space consumption. The issue is fixed in versions 7.1.2-30 and 6.9.13-55. ImageMagick administrators and developers should assess exposure and apply patches.

Defensive priority

Medium priority for ImageMagick administrators and developers to assess exposure and apply patches.

Recommended defensive actions

• Assess exposure by reviewing ImageMagick versions and configurations.
• Apply patches to update to version 7.1.2-30 or 6.9.13-55.
• Monitor for unusual disk space consumption patterns.
• Review security policies and resource restrictions for ImageMagick.
• Verify and limit disk space consumption by ImageMagick processes.
• Assess and mitigate potential denial-of-service (DoS) risks.
• Review and update security policies for resource restrictions.

Evidence notes

The CVE record and source item provide details on the policy bypass issue in ImageMagick's MAT decoder. The NVD entry is currently UNCHANGED. The vulnerability allows for policy bypass and excessive disk space consumption via highly compressed MAT images. ImageMagick versions prior to 7.1.2-30 and 6.9.13-55 are affected. The issue is fixed in versions 7.1.2-30 and 6.9.13-55.

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.