CVE-2026-105403 ImageMagick CVE debrief

Who should care

Defenders responsible for ImageMagick installations, especially those using coder-based security policies, should assess exposure and verify configurations to ensure they are up-to-date and properly secured. This includes operators, administrators, and security teams responsible for managing ImageMagick deployments. They should review and update security policies to use module-based domains where possible and implement measures to prevent or detect crafted

Why it matters

CVE-2026-105403 is a security policy bypass vulnerability in ImageMagick that allows an attacker to evade coder-based policy restrictions by supplying a crafted image. Defenders should prioritize verifying ImageMagick installations, especially those using coder-based security policies, and assess exposure to crafted images.

• Verify ImageMagick installations to ensure they are up-to-date and properly secured.
• Assess exposure to crafted images and implement measures to prevent or detect such attacks.
• Review and update security policies to use module-based domains where possible.

Technical summary

The vulnerability exists in ImageMagick versions before 7.1.2-31 and 6.9.13-56. An attacker can supply a crafted image to evade coder-based policy restrictions, potentially causing ImageMagick to process blocked formats. This security policy bypass vulnerability allows an attacker to bypass security restrictions and potentially process formats that are intended to be blocked. Defenders should prioritize verifying ImageMagick installations, especially those using coder-based security policies, and assess exposure to crafted images.

Defensive priority

Defenders should prioritize verifying ImageMagick installations, especially those using coder-based security policies, and assess exposure to crafted images.

Recommended defensive actions

• Verify ImageMagick installations and configurations to ensure they are up-to-date and properly secured.
• Assess exposure to crafted images and implement measures to prevent or detect such attacks.
• Review and update security policies to use module-based domains where possible.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record and source item provide details on the security policy bypass vulnerability in ImageMagick. However, limited information is available on potential exploitation or affected systems. Defenders should verify ImageMagick installations and configurations to ensure they are up-to-date and properly secured. The vulnerability exists in ImageMagick versions before 7.1.2-31 and 6.9.13-56. The CVE Program record and NVD detail page provide additional information on the vulnerability.

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.