CVE-2026-25969: Image Magick has a Memory Leak in coders/ashlar.c
Memory leak exists in coders/ashlar.c. The WriteASHLARImage allocates a structure. However, when an exception is thrown, the allocated memory is not properly released, resulting in a potential memory leak.
```bash
==78968== Memcheck, a memory error detector
==78968== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==78968== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
==78968==
==78968== HEAP SUMMARY:
==78968== in use at exit: 17,232 bytes in 4 blocks
==78968== total heap usage: 4,781 allocs, 4,777 frees, 785,472 bytes allocated
References
- github.com/ImageMagick/ImageMagick
- github.com/ImageMagick/ImageMagick/commit/a253d1b124ebdcc2832daac6f9a35c362635b40e
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-xgm3-v4r9-wfgm
- github.com/advisories/GHSA-xgm3-v4r9-wfgm
- github.com/dlemstra/Magick.NET/releases/tag/14.10.3
- nvd.nist.gov/vuln/detail/CVE-2026-25969
Code Behaviors & Features
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