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CVE-2026-109279GHSA-8x3v-wr32-qqh4

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Heap Buffer Overflow via Concurrent Security Policy Access

ImageMagick ImageMagickLibraries & packages
Open in ThreatlineRecord JSON
CVSS
2.0Low
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.09%Chance of exploitation activity in the next 30 days, higher than 0% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in7.1.2-32Also 6.9.13-57CVE List
Published12 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 lacks proper synchronization when the security policy is accessed, so simultaneous reads and writes of the policy by multiple threads trigger a race condition that causes a heap buffer over-write. An attacker able to induce concurrent security policy access can crash the application, causing a denial of service.

Text from CVE List

Affected versions 4

  • ImageMagickaffected: 7.0.0-0 before 7.1.2-32CVE List
  • ImageMagickunaffected: 7.1.2-32CVE List
  • ImageMagickaffected: all versions before 6.9.13-57CVE List
  • ImageMagickunaffected: 6.9.13-57CVE List

References 4