Vulnerability · Published Nov 5, 2026 · Assigned by VulnCheck
CVE-2026-123273ImageMagick before 7.1.2-35 and 6.9.13-60 Infinite Loop via SVG Decoder
Medium 6.5
In plain English
A medium-severity infinite loop in ImageMagick from ImageMagick. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 72.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | imagemagick | no fix listed | DEBIAN-CVE-2026-123273 |
| Debian:13 | imagemagick | no fix listed | DEBIAN-CVE-2026-123273 |
| Debian:14 | imagemagick | no fix listed | DEBIAN-CVE-2026-123273 |
| Ubuntu:26.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-123273 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | 7.0.0 – before 7.1.2-350 – before 6.9.13-60 |
Weakness: CWE-835 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-q66g-3m63-78mh) vendor-advisory
- https://github.com/ImageMagick/ImageMagick/commit/c5f2c6c9fb1458f960a506691c9351e9da6d2247 patch
- https://github.com/ImageMagick/ImageMagick6/commit/712e523e7f746d35c963b78555e1c24364a9426e patch
- https://github.com/ImageMagick/ImageMagick/blob/3a9639c0bd21f61f22fcce4c5f6838f1f0d8f738/MagickCore/cache.c#L4348 technical-description
- ImageMagick 7.1.2-35 Release Notes release-notes
- ImageMagick 6.9.13-60 Release Notes release-notes
- VulnCheck Advisory: ImageMagick before 7.1.2-35 and 6.9.13-60 Infinite Loop via SVG Decoder third-party-advisory