CVE-2026-40183

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. This issue has been fixed in version 7.1.2-19.

Score

CVSS 3.1 5.5 Medium

Status

Analyzed - security-advisories@github.com

Published

2026-04-13

Last modified

2026-04-14

Weaknesses

CWE-122

Affected products

• Imagemagick (Imagemagick)

References

• https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jvgr-9ph5-m8v4
• https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0