CVE-2026-56376

Summary

ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.

Impact & exploitability

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Additional information

• NVD record
• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2gq3-ww97-wfjmAdvisory
• https://www.vulncheck.com/advisories/imagemagick-heap-use-after-free-in-meta-coderAdvisory