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.
CVE-2026-86421
CVSS base score
3.7 (v3.1)
Severity
LOW
Attack vector
Network
Weakness
CWE-400
Last modified
October 29, 2026
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
imagemagick imagemagick
References
- github.com Vendor Advisory
- www.vulncheck.com Third Party Advisory