CVE-2026-27798: ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images
(updated )
A heap buffer over-read vulnerability occurs when processing an image with small dimension using the -wavelet-denoise operator.
==3693336==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x511000001280 at pc 0x5602c8b0cc75 bp 0x7ffcb105d510 sp 0x7ffcb105d500
READ of size 4 at 0x511000001280 thread T0
References
- github.com/ImageMagick/ImageMagick
- github.com/ImageMagick/ImageMagick/commit/0377e60b3c0d766bd7271221c95d9ee54f6a3738
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qpgx-jfcq-r59f
- github.com/advisories/GHSA-qpgx-jfcq-r59f
- github.com/dlemstra/Magick.NET/releases/tag/14.10.3
- nvd.nist.gov/vuln/detail/CVE-2026-27798
Code Behaviors & Features
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