CVE-2026-25638: ImageMagick has memory leak in msl encoder
Memory leak exists in coders/msl.c. In the WriteMSLImage function of the msl.c file, resources are allocated. But the function returns early without releasing these allocated resources.
==78983== Memcheck, a memory error detector
==78983== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
==78983== Using Valgrind-3.22.0 and LibVEX; rerun with -h for copyright info
==78983==
==78983== 177,196 (13,512 direct, 163,684 indirect) bytes in 1 blocks are definitely lost in loss record 21 of 21
==78983== at 0x4846828: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
References
- github.com/ImageMagick/ImageMagick
- github.com/ImageMagick/ImageMagick/commit/1e88fca11c7b8517100d518bc99bd8c474f02f88
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-gxcx-qjqp-8vjw
- github.com/advisories/GHSA-gxcx-qjqp-8vjw
- github.com/dlemstra/Magick.NET/releases/tag/14.10.3
- nvd.nist.gov/vuln/detail/CVE-2026-25638
Code Behaviors & Features
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