Vulnerability · Published Apr 13, 2026 · Assigned by GitHub_M
CVE-2026-40312ImageMagick: Off-by-One in MSL decoder could result in crash
Medium 6.2
In plain English
A medium-severity security flaw 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 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)0.2%top 92.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, an off by one error in the MSL decoder could result in a crash when a malicous MSL file is read. This issue has been fixed in version 7.1.2-19.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | imagemagick | 7.1.2.19-r0 | ALPINE-CVE-2026-40312 |
| Alpine:v3.24 | imagemagick | 7.1.2.19-r0 | ALPINE-CVE-2026-40312 |
| Debian:13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u8 | DEBIAN-CVE-2026-40312 |
| Debian:14 | imagemagick | 8:7.1.2.19+dfsg1-1 | DEBIAN-CVE-2026-40312 |
| NuGet | magick.net-q16-anycpu | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-arm64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-hdri-anycpu | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-hdri-arm64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-hdri-openmp-arm64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-hdri-x64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-hdri-x86 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-openmp-arm64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-openmp-x64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-x64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q16-x86 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q8-anycpu | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q8-arm64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q8-openmp-arm64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q8-openmp-x64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q8-x64 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| NuGet | magick.net-q8-x86 | 14.12.0 | GHSA-5xg3-585r-9jh5 |
| Ubuntu:25.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-40312 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | < 7.1.2-19 |
Weakness: CWE-193 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5xg3-585r-9jh5 x_refsource_CONFIRM
- https://github.com/ImageMagick/ImageMagick/commit/2a06c7be3bba3326caf8b7a8d1fa2e0d4b88998d x_refsource_MISC
- https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19 x_refsource_MISC
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0 x_refsource_MISC