GHSA-98cp-rj9f-6v5g: ImageMagick has has a stack-buffer-overflow in MNG encoder with oversized pallete

April 14, 2026 (updated April 16, 2026)

The patch for GHSA-7h7q-j33q-hvpf was incomplete and still allows a stack buffer overflow for the multi frame images.

References

github.com/ImageMagick/ImageMagick
github.com/ImageMagick/ImageMagick/security/advisories/GHSA-98cp-rj9f-6v5g
github.com/advisories/GHSA-98cp-rj9f-6v5g

Code Behaviors & Features

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