ImageMagick has an Out-of-bounds Write via InterpretImageFilename

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-18 and 6.9.13-43, due to an incorrect return value on certain platforms a pointer is incremented past the end of a buffer that is on the stack and that could result in an out of bounds write. Versions 7.1.2-18 and 6.9.13-43 patch the issue.

Problem type

Affected products

ImageMagick

ImageMagick

< 7.1.2-18 - AFFECTED

< 6.9.13-43 - AFFECTED

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8793-7xv6-82cf

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8793-7xv6-82cf

x_refsource_CONFIRM

GitHub Security Advisories

GHSA-8793-7xv6-82cf

ImageMagick has an Out-of-bounds Write via InterpretImageFilename

https://github.com/advisories/GHSA-8793-7xv6-82cf

Due to an incorrect return value on certain platforms a pointer is incremented past the end of a buffer that is on the stack and that could result in an out of bounds write.

=================================================================
==48558==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x00016b9b7490 at pc 0x0001046d48ac bp 0x00016b9b31d0 sp 0x00016b9b31c8
WRITE of size 1 at 0x00016b9b7490 thread T0

github.com

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8793-7xv6-82cf

github.com

https://github.com/advisories/GHSA-8793-7xv6-82cf

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-33536

Click to expand

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-33536",
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "dateUpdated": "2026-03-26T19:57:53.619Z",
    "dateReserved": "2026-03-20T18:05:11.831Z",
    "datePublished": "2026-03-26T19:57:53.619Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
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        "shortName": "GitHub_M",
        "dateUpdated": "2026-03-26T19:57:53.619Z"
      },
      "title": "ImageMagick has an Out-of-bounds Write via InterpretImageFilename",
      "descriptions": [
        {
          "lang": "en",
          "value": "ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-18 and 6.9.13-43, due to an incorrect return value on certain platforms a pointer is incremented past the end of a buffer that is on the stack and that could result in an out of bounds write. Versions 7.1.2-18 and 6.9.13-43 patch the issue."
        }
      ],
      "affected": [
        {
          "vendor": "ImageMagick",
          "product": "ImageMagick",
          "versions": [
            {
              "version": "< 7.1.2-18",
              "status": "affected"
            },
            {
              "version": "< 6.9.13-43",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-787: Out-of-bounds Write",
              "cweId": "CWE-787",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-121: Stack-based Buffer Overflow",
              "cweId": "CWE-121",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8793-7xv6-82cf",
          "name": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8793-7xv6-82cf",
          "tags": [
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        }
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      "metrics": [
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "attackVector": "LOCAL",
            "attackComplexity": "HIGH",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "availabilityImpact": "HIGH",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM"
          }
        }
      ]
    }
  }
}