CVE-2026-119123 ImageMagick CVE debrief

Who should care

Defenders responsible for ImageMagick installations, particularly those using versions prior to 7.1.2-34, should assess exposure and prioritize updates. Defenders should verify ImageMagick versions, prioritize updates, and monitor for potential denial-of-service attacks. The vulnerability can cause a denial of service, and defenders should review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-119123 is a stack overflow vulnerability in ImageMagick's TIFF decoder. Defenders should verify ImageMagick versions, prioritize updates, and monitor for potential denial-of-service attacks.

• Denial of service attacks may be possible through crafted image files
• Verification of ImageMagick versions and updates is necessary

Technical summary

The vulnerability occurs in the TIFF decoder of ImageMagick when the DNG decoder is disabled. A crafted image file can trigger a stack overflow, causing a denial of service. Defenders should prioritize verifying ImageMagick versions and updating to 7.1.2-34 or later if vulnerable. The CVE record and NVD detail page provide information on the vulnerability, including its CVSS score of 6.3 and MEDIUM severity. Vendor advisories and third-party reports also discuss the issue. The vulnerability can cause a denial of service, and defenders should verify ImageMagick versions and prioritize updates.

Defensive priority

Defenders should prioritize verifying ImageMagick versions and updating to 7.1.2-34 or later if vulnerable.

Recommended defensive actions

• Verify ImageMagick versions in use and assess exposure
• Update ImageMagick to version 7.1.2-34 or later if vulnerable
• Monitor for potential denial-of-service attacks
• 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 NVD detail page provide information on the vulnerability, including its CVSS score of 6.3 and MEDIUM severity. Vendor advisories and third-party reports also discuss the issue. Defenders should verify ImageMagick versions, prioritize updates, and monitor for potential denial-of-service attacks. The vulnerability occurs in the TIFF decoder of ImageMagick when the DNG decoder is disabled. A crafted image file can trigger a stack overflow, causing a denial of service.

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.