CVE-2026-40169
MEDIUM6.2EPSS 0.01%ImageMagick has a heap buffer overflow (WRITE) in the YAML and JSON encoders.
Published: 4/14/2026Modified: 5/17/2026
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 (18)
- Debian/imagemagickfrom 0, < 8:7.1.1.43+dfsg1-1+deb13u8
- NuGet/Magick.NET-Q16-AnyCPUfrom 0, < 14.12.0
- NuGet/Magick.NET-Q16-arm64from 0, < 14.12.0
- NuGet/Magick.NET-Q16-HDRI-AnyCPUfrom 0, < 14.12.0
- NuGet/Magick.NET-Q16-HDRI-arm64from 0, < 14.12.0
- NuGet/Magick.NET-Q16-HDRI-OpenMP-arm64from 0, < 14.12.0
- NuGet/Magick.NET-Q16-HDRI-x64from 0, < 14.12.0
- NuGet/Magick.NET-Q16-HDRI-x86from 0, < 14.12.0
- NuGet/Magick.NET-Q16-OpenMP-arm64from 0, < 14.12.0
- NuGet/Magick.NET-Q16-OpenMP-x64from 0, < 14.12.0
- NuGet/Magick.NET-Q16-x64from 0, < 14.12.0
- NuGet/Magick.NET-Q16-x86from 0, < 14.12.0
- NuGet/Magick.NET-Q8-AnyCPUfrom 0, < 14.12.0
- NuGet/Magick.NET-Q8-arm64from 0, < 14.12.0
- NuGet/Magick.NET-Q8-OpenMP-arm64from 0, < 14.12.0
- NuGet/Magick.NET-Q8-OpenMP-x64from 0, < 14.12.0
- NuGet/Magick.NET-Q8-x64from 0, < 14.12.0
- NuGet/Magick.NET-Q8-x86from 0, < 14.12.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-40169
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-40169
- PATCHhttps://github.com/ImageMagick/ImageMagick
- WEBhttps://github.com/dlemstra/Magick.NET/releases/tag/14.12.0
- WEBhttps://github.com/ImageMagick/ImageMagick/commit/f86452a8aea37bf2b4bd36127f836dcc5f138b38
- WEBhttps://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
- WEBhttps://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5592-p365-24xh