CVE-2026-123273
Publication date 6 November 2026
Last updated 6 November 2026
Ubuntu priority
Description
ImageMagick before 7.1.2-35 and 6.9.13-60 contains an infinite loop vulnerability in the SVG decoder because QueueAuthenticPixelCacheNexus in MagickCore/cache.c fails to validate requested region width and height. Attackers can supply a crafted SVG image that repeatedly requests a non-advancing pixel region, consuming CPU and hanging the decoding worker.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| imagemagick | 26.10 stonking |
Needs evaluation
|
| 26.04 LTS resolute |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
CVSS version:
Base score
7.1 · High
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Base score
6.5 · Medium
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-123273
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q66g-3m63-78mh
- https://github.com/ImageMagick/ImageMagick/blob/3a9639c0bd21f61f22fcce4c5f6838f1f0d8f738/MagickCore/cache.c#L4348
- https://github.com/ImageMagick/ImageMagick/commit/c5f2c6c9fb1458f960a506691c9351e9da6d2247
- https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-35
- https://github.com/ImageMagick/ImageMagick6/commit/712e523e7f746d35c963b78555e1c24364a9426e
- https://github.com/ImageMagick/ImageMagick6/releases/tag/6.9.13-60
- https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-35-and-6.9.13-60-infinite-loop-via-svg-decoder