{"id":"CVE-2026-25637","aliases":["GHSA-gm37-qx7w-p258"],"url":"https://o3.security/vulnerability/CVE-2026-25637","summary":"ImageMagick: Possible memory leak in ASHLAR encoder","details":"A memory leak in the ASHLAR image writer allows an attacker to exhaust process memory by providing a crafted image that results in small objects that are allocated but never freed.\n\n```\n==880062== Memcheck, a memory error detector\n==880062== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.\n==880062== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info\n==880062== \n==880062== \n==880062== HEAP SUMMARY:\n==880062==     in use at exit: 386,826 bytes in 696 blocks\n==880062==   total heap usage: 30,523 allocs, 29,827 frees, 21,803,756 bytes allocated\n==880062== \n==880062== LEAK SUMMARY:\n==880062==    definitely lost: 3,408 bytes in 3 blocks\n==880062==    indirectly lost: 88,885 bytes in 30 blocks\n==880062==      possibly lost: 140,944 bytes in 383 blocks\n==880062==    still reachable: 151,573 bytes in 259 blocks\n==880062==         suppressed: 0 bytes in 0 blocks\n==880062== Reachable blocks (those to which a pointer was found) are not shown.\n==880062== To see them, rerun with: --leak-check=full --show-leak-kinds=all\n==880062== \n==880062== For lists of detected and suppressed errors, rerun with: -s\n==880062== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)\n```","published":"2026-02-24T00:48:37.892Z","modified":"2026-08-12T15:31:57.817777Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.00384,"percentile":0.32085,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"NuGet","name":"Magick.NET-Q16-AnyCPU","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-HDRI-AnyCPU","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-HDRI-OpenMP-arm64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-HDRI-OpenMP-x64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-HDRI-arm64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-HDRI-x64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-HDRI-x86","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-OpenMP-arm64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-OpenMP-x64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-OpenMP-x86","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-arm64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-x64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-x86","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q8-AnyCPU","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q8-OpenMP-arm64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q8-OpenMP-x64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q8-arm64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q8-x64","fixedVersion":"14.10.3"},{"ecosystem":"NuGet","name":"Magick.NET-Q8-x86","fixedVersion":"14.10.3"}],"fix":{"url":"https://github.com/ImageMagick/ImageMagick/commit/30ce0e8efbd72fd6b50ed3a10ae22f57c8901137","label":"ImageMagick/ImageMagick@30ce0e8"},"references":[{"type":"WEB","url":"https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25637.json"},{"type":"ADVISORY","url":"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-gm37-qx7w-p258"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25637"},{"type":"FIX","url":"https://github.com/ImageMagick/ImageMagick/commit/30ce0e8efbd72fd6b50ed3a10ae22f57c8901137"},{"type":"PACKAGE","url":"https://github.com/ImageMagick/ImageMagick"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T15:31:57.817777Z"}}