JLSEC-2026-1000 Medium 5.5
ImageMagick has a heap buffer overflow (WRITE) in the YAML and JSON encoders.
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.
References
- https://github.com/ImageMagick/ImageMagick/commit/f86452a8aea37bf2b4bd36127f836dcc5f138b38
- https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5592-p365-24xh
- https://github.com/advisories/GHSA-5592-p365-24xh
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-40169