CVE-2026-33900

NameCVE-2026-33900
DescriptionImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, the viff encoder contains an integer truncation/wraparound issue on 32-bit builds that could trigger an out of bounds heap write, potentially causing a crash. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.
SourceCVE (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 PackageReleaseVersionStatus
imagemagick (PTS)bullseye8:6.9.11.60+dfsg-1.3+deb11u4vulnerable
bullseye (security)8:6.9.11.60+dfsg-1.3+deb11u10vulnerable
bookworm8:6.9.11.60+dfsg-1.6+deb12u5vulnerable
bookworm (security)8:6.9.11.60+dfsg-1.6+deb12u8vulnerable
trixie8:7.1.1.43+dfsg1-1+deb13u5vulnerable
trixie (security)8:7.1.1.43+dfsg1-1+deb13u7vulnerable
forky, sid8:7.1.2.18+dfsg1-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
imagemagicksource(unstable)(unfixed)

Notes

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v67w-737x-v2c9
https://github.com/ImageMagick/ImageMagick/commit/d27b840a61b322419a66d0d192ff56d52498148d (7.1.2-19)
Claimed fixed in IM6, but fix seems actually missing

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