CVE-2026-23876

Name	CVE-2026-23876
Description	ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
imagemagick (PTS)	bullseye	8:6.9.11.60+dfsg-1.3+deb11u4	vulnerable
	bullseye (security)	8:6.9.11.60+dfsg-1.3+deb11u8	vulnerable
	bookworm	8:6.9.11.60+dfsg-1.6+deb12u5	vulnerable
	bookworm (security)	8:6.9.11.60+dfsg-1.6+deb12u4	vulnerable
	trixie	8:7.1.1.43+dfsg1-1+deb13u4	vulnerable
	trixie (security)	8:7.1.1.43+dfsg1-1+deb13u2	vulnerable
	forky, sid	8:7.1.2.12+dfsg1-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
imagemagick	source	(unstable)	(unfixed)

Notes

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8
Fixed by: https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8 (7.1.2-13)
Fixed by: https://github.com/ImageMagick/ImageMagick6/commit/536512a2c60cd6e8c21c1256c2ee4da48d903e0c (6.9.13-38)