CVE-2026-40169

ImageMagick: Heap buffer overflow (WRITE) in the YAML and JSON encoders

State: Published
Severity: 6.2 Medium
Published: Apr 13, 2026
Updated: Apr 14, 2026
Reserved: Apr 9, 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.

Scores

CVSS	Score	Vector	Source
3.1	6.2 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-122 Heap-based Buffer Overflow
CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
ImageMagickImageMagick	< 7.1.2-19Affected

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5592-p365-24xh
https://github.com/ImageMagick/ImageMagick/commit/f86452a8aea37bf2b4bd36127f836dcc5f138b38
https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0

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