Vulnerability · Published Apr 13, 2026 · Assigned by GitHub_M
CVE-2026-40169ImageMagick: Heap buffer overflow (WRITE) in the YAML and JSON encoders
Medium 6.2
In plain English
A medium-severity heap buffer overflow 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 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, a crafted image could result in an out of bounds heap write when writing a yaml or json output, resulting in a crash. 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-2026-40169 |
| Alpine:v3.24 | imagemagick | 7.1.2.19-r0 | ALPINE-CVE-2026-40169 |
| Debian:13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u8 | DEBIAN-CVE-2026-40169 |
| Debian:14 | imagemagick | 8:7.1.2.19+dfsg1-1 | DEBIAN-CVE-2026-40169 |
| NuGet | magick.net-q16-anycpu | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-arm64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-hdri-anycpu | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-hdri-arm64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-hdri-openmp-arm64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-hdri-x64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-hdri-x86 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-openmp-arm64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-openmp-x64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-x64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q16-x86 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q8-anycpu | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q8-arm64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q8-openmp-arm64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q8-openmp-x64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q8-x64 | 14.12.0 | GHSA-5592-p365-24xh |
| NuGet | magick.net-q8-x86 | 14.12.0 | GHSA-5592-p365-24xh |
| Ubuntu:25.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-40169 |
| Ubuntu:26.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-40169 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | < 7.1.2-19 |
Weakness: CWE-122, CWE-787 · 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-5592-p365-24xh x_refsource_CONFIRM
- https://github.com/ImageMagick/ImageMagick/commit/f86452a8aea37bf2b4bd36127f836dcc5f138b38 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