CVE-2026-40183: ImageMagick has a heap buffer overflow when encoding JXL image with a 16-bit float
The JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats.
References
- github.com/ImageMagick/ImageMagick
- github.com/ImageMagick/ImageMagick/commit/1c7767fc5f822c6edc104c1220d523e96fa20b5a
- github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jvgr-9ph5-m8v4
- github.com/advisories/GHSA-jvgr-9ph5-m8v4
- github.com/dlemstra/Magick.NET/releases/tag/14.12.0
- nvd.nist.gov/vuln/detail/CVE-2026-40183
Code Behaviors & Features
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