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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ImageMagick | ImageMagick | 7.0.0 – < 7.1.2-35, < 6.9.13-60 | 7.1.2-35 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | imagemagick | No fix yet | — |
| Debian 13 | imagemagick | No fix yet | — |
| Debian 12 | imagemagick | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | imagemagick | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 24.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 22.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 20.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 18.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 16.04 LTS | imagemagick | No fix yet | — |
| Ubuntu Pro 14.04 LTS | imagemagick | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ImageMagick | 7.1.2.35-2.1 | openSUSE-SU-2026:12508-1 |
Advisories 2
- WID-SEC-2026-4267 ImageMagick: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- openSUSE-SU-2026:12508-1 ImageMagick-7.1.2.35-2.1 on GA media SUSE / openSUSE Security Updates · Nov 11, 2026
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