CVE-2026-102635

NameCVE-2026-102635
DescriptionImageMagick versions before 7.1.2-32 and 6.9.13-57 contain uninitialized heap memory disclosure in the GIF decoder's application extension handler in coders/gif.c. Attackers can craft malicious GIF files that cause the number parser to read uninitialized heap memory and store contents as image metadata, disclosing sensitive heap information.
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)bookworm8:6.9.11.60+dfsg-1.6+deb12u11vulnerable
bookworm (security)8:6.9.11.60+dfsg-1.6+deb12u13vulnerable
trixie8:7.1.1.43+dfsg1-1+deb13u12vulnerable
trixie (security)8:7.1.1.43+dfsg1-1+deb13u11vulnerable
forky, sid8:7.1.2.31+dfsg1-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
imagemagicksource(unstable)(unfixed)

Notes

[trixie] - imagemagick <no-dsa> (Minor issue)
https://github.com/ImageMagick/ImageMagick/commit/a0ca2c739c0216ff4efbd631d1ba7fd54dba1ff4 (7.1.2-32)
https://github.com/ImageMagick/ImageMagick6/commit/95dc0fd21a684bfac2bdb6fb6638c0ab271adbe5 (6.9.13-57)

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