CVE-2026-40312: Magick.NET Q16 AnyCPU ImageMagick Has An Off-by-one Error Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5xg3-585r-9jh5",
  "modified" : "2026-04-14T19:10:48Z",
  "published" : "2026-04-14T19:10:48Z",
  "aliases" : [ "CVE-2026-40312" ],
  "summary" : "ImageMagick has an off-by-one error in MSL decoder could result in crash",
  "details" : "An off by one error in de MSL decoder could result in a crash when a malicous msl file is read.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Magick.NET-Q16-AnyCPU"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "14.12.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Magick.NET-Q16-HDRI-AnyCPU"
    },
    "ranges" : [ {
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      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "14.12.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Magick.NET-Q16-HDRI-OpenMP-arm64"
    },
    "ranges" : [ {
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      "name" : "Magick.NET-Q16-HDRI-arm64"
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  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Magick.NET-Q16-HDRI-x64"
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  }, {
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      "name" : "Magick.NET-Q16-HDRI-x86"
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      "name" : "Magick.NET-Q8-AnyCPU"
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      "name" : "Magick.NET-Q8-x64"
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      "name" : "Magick.NET-Q8-x86"
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  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5xg3-585r-9jh5"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-40312"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ImageMagick/ImageMagick/commit/2a06c7be3bba3326caf8b7a8d1fa2e0d4b88998d"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ImageMagick/ImageMagick"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-193" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-14T19:10:48Z",
    "nvd_published_at" : "2026-04-13T22:16:30Z"
  }
}