| Name | CVE-2026-56362 |
| Description | 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. |
| 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+deb11u16 | fixed |
| bookworm | 8:6.9.11.60+dfsg-1.6+deb12u11 | fixed |
| bookworm (security) | 8:6.9.11.60+dfsg-1.6+deb12u13 | 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 | 8:6.9.11.60+dfsg-1.3+deb11u11 | | | |
| imagemagick | source | bookworm | 8:6.9.11.60+dfsg-1.6+deb12u8 | | | |
| imagemagick | source | (unstable) | 8:7.1.2.15+dfsg1-1 | | | |
Notes
[trixie] - imagemagick <postponed> (Minor issue, fix along in future update)
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-gq5v-qf8q-fp77
Fixed by: https://github.com/ImageMagick/ImageMagick/commit/364606e5cb955b622b13015814e255e1dadd701b (7.1.2-14)
See also https://github.com/ImageMagick/ImageMagick/issues/8567
Fixed by: https://github.com/ImageMagick/ImageMagick6/commit/6a602fb36f181a0089848344a3b0d79fc6155a2b (6.9.13-41)
for imagemagick6 fixed in a jumbo patch