CVE-2026-28692: ImageMagick has a heap buffer over-read via 32-bit integer overflow in MAT decoder

March 10, 2026

In MAT decoder uses 32-bit arithmetic due to incorrect parenthesization resulting in a heap over-read.

=================================================================
==969652==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x506000003b40 at pc 0x555557b2a926 bp 0x7fffffff4c80 sp 0x7fffffff4c70
READ of size 8 at 0x506000003b40 thread T0

References

github.com/ImageMagick/ImageMagick
github.com/ImageMagick/ImageMagick/security/advisories/GHSA-mrmj-x24c-wwcv
github.com/advisories/GHSA-mrmj-x24c-wwcv
github.com/dlemstra/Magick.NET/releases/tag/14.10.4
nvd.nist.gov/vuln/detail/CVE-2026-28692

Code Behaviors & Features

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