ImageMagick before 7.1.2-15 contains a heap-buffer-overflow read vulnerability in GetPixelIndex caused by OpenPixelCache updating image channel metadata before pixel cache memory allocation. Attackers can trigger memory and disk allocation failures to cause a heap-buffer-overflow read affecting any writer calling GetPixelIndex.
CVE-2026-56362
CVSS base score
3.3 (v3.1)
Severity
LOW
Attack vector
Network
Weakness
CWE-125
Last modified
October 29, 2026
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L
Affected products
imagemagick imagemagick
References
- github.com Vendor Advisory
- www.vulncheck.com Third Party Advisory