{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "ImageMagick",
          "vendor": "ImageMagick",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.1.2-19"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. This issue has been fixed in version 7.1.2-19."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122: Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-13T21:28:20.797Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jvgr-9ph5-m8v4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jvgr-9ph5-m8v4"
        },
        {
          "name": "https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19"
        },
        {
          "name": "https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0"
        }
      ],
      "source": {
        "advisory": "GHSA-jvgr-9ph5-m8v4",
        "discovery": "UNKNOWN"
      },
      "title": "ImageMagick: Heap buffer overflow when encoding JXL image with a 16-bit float"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40183",
    "datePublished": "2026-04-13T21:28:20.797Z",
    "dateReserved": "2026-04-09T20:59:17.619Z",
    "dateUpdated": "2026-04-13T21:28:20.797Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-40183",
      "date": "2026-04-14",
      "epss": "0.00012",
      "percentile": "0.01569"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-40183\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-04-13T22:16:29.643\",\"lastModified\":\"2026-04-13T22:16:29.643\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. This issue has been fixed in version 7.1.2-19.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-122\"}]}],\"references\":[{\"url\":\"https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jvgr-9ph5-m8v4\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}