Description
ImageMagick before 7.1.2-33 contains a memory leak vulnerability in the MAT decoder that fails to release allocated memory in a specific error path. Attackers can supply crafted MAT files that trigger this error path repeatedly, causing small memory leaks that gradually consume process memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ImageMagick | ImageMagick | < 7.1.2-33 | 7.1.2-33 |
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 | 8:7.1.2.33+dfsg1-1 | — |
| Debian 13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u13 | — |
| Debian 12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u14 | — |
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 | 7.1.2.34-3.1 | openSUSE-SU-2026:12356-1 |
Advisories 1
- openSUSE-SU-2026:12356-1 ImageMagick-7.1.2.34-3.1 on GA media SUSE / openSUSE Security Updates · Oct 31, 2026
References
- GitHub Security Advisory (GHSA-83w9-w85j-h9jc) vendor-advisory
- VulnCheck Advisory: ImageMagick before 7.1.2-33 Memory Leak in MAT Decoder Error Path third-party-advisory