CVE-2026-27799: ImageMagick has a heap Buffer Over-read in its DJVU image format handler
(updated )
A heap Buffer Over-read vulnerability exists in the DJVU image format handler. The vulnerability occurs due to integer truncation when calculating the stride (row size) for pixel buffer allocation. The stride calculation overflows a 32-bit signed integer, resulting in an out-of-bounds memory reads.
References
- github.com/ImageMagick/ImageMagick
- github.com/ImageMagick/ImageMagick/commit/e87695b3227978ad70b967b8d054baaf8ac2cced
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r99p-5442-q2x2
- github.com/advisories/GHSA-r99p-5442-q2x2
- github.com/dlemstra/Magick.NET/releases/tag/14.10.3
- nvd.nist.gov/vuln/detail/CVE-2026-27799
Code Behaviors & Features
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