CVE-2026-86421: ImageMagick

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

ImageMagick before 7.1.2-30 and 6.9.13-55 contains a memory leak in the MSL image decoder. A crafted MSL image triggers memory allocation without proper deallocation, allowing an attacker to exhaust memory and cause a denial of service.

Affected products

• ImageMagick ImageMagick: before 6.9.13-55 (fixed in 6.9.13-55); from 7.0.0-0, before 7.1.2-30 (fixed in 7.1.2-30)

Published 2026-09-07. Last modified 2026-09-09.