| Name | CVE-2026-56374 |
| Description | ImageMagick before 7.1.2-19 contains a heap buffer overflow vulnerability in the FTXT encoder due to missing boundary checks when parsing ftxt:format. Remote attackers can trigger an out of bounds read by crafting malicious FTXT image files to cause denial of service or information disclosure. |
| 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 | fixed |
| bullseye (security) | 8:6.9.11.60+dfsg-1.3+deb11u14 | fixed |
| bookworm, bookworm (security) | 8:6.9.11.60+dfsg-1.6+deb12u11 | fixed |
| trixie | 8:7.1.1.43+dfsg1-1+deb13u10 | vulnerable |
| trixie (security) | 8:7.1.1.43+dfsg1-1+deb13u11 | vulnerable |
| forky, sid | 8:7.1.2.27+dfsg1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| imagemagick | source | bullseye | (not affected) | | | |
| imagemagick | source | bookworm | (not affected) | | | |
| imagemagick | source | (unstable) | 8:7.1.2.19+dfsg1-1 | | | |
Notes
[trixie] - imagemagick <postponed> (Minor issue, fix along in future update)
[bookworm] - imagemagick <not-affected> (coder FTXT introduced later)
[bullseye] - imagemagick <not-affected> (coder FTXT introduced later)
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-w54j-7wpm-crhj
Fixed by: https://github.com/ImageMagick/ImageMagick/commit/22aef933133770706caafb93f814f5306dcca345 (7.1.2-19)