CVE-2026-56377

Full vulnerability record from the local CVENow database.
Description

ImageMagick before 7.1.2-24 contains an incorrect policy check that allows attackers to create or truncate files disallowed by security policies. Remote attackers can bypass path policy restrictions in sandboxed conversion services to write arbitrary files outside intended boundaries.
Severity
MEDIUM
CVSS score
4.8 (v4.0)
Vulnerability status
Analyzed
Source identifier
[email protected]
Published
2026-06-30 23:17:31.773000
Last modified
2026-10-29 21:17:25.867000
View original CVE JSON
{
  "id": "CVE-2026-56377",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-30T23:17:31.773",
  "lastModified": "2026-10-29T21:17:25.867",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ImageMagick before 7.1.2-24 contains an incorrect policy check that allows attackers to create or truncate files disallowed by security policies. Remote attackers can bypass path policy restrictions in sandboxed conversion services to write arbitrary files outside intended boundaries."
    },
    {
      "lang": "es",
      "value": "ImageMagick anterior a la versión 7.1.2-24 contiene una comprobación de política incorrecta que permite a los atacantes crear o truncar archivos no permitidos por las políticas de seguridad. Los atacantes remotos pueden eludir las restricciones de política de ruta en servicios de conversión en entornos aislados para escribir archivos arbitrarios fuera de los límites previstos."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "ImageMagick",
          "product": "ImageMagick",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7.0.0",
              "lessThan": "7.1.2-24",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "7.1.2-24",
              "versionType": "semver",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "ImageMagick",
          "product": "ImageMagick",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThan": "6.9.13-48",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "6.9.13-48",
              "versionType": "semver",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-01T14:55:12.976900Z",
          "id": "CVE-2026-56377",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "6.9.13-48",
              "matchCriteriaId": "94748C9C-BB1A-44BF-B154-22D44C9CA92B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.0-0",
              "versionEndExcluding": "7.1.2-24",
              "matchCriteriaId": "1A24AE97-1214-436A-AD8F-E147DFE64E8B"
            }
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  ],
  "references": [
    {
      "url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-gm48-c7f2-v67p",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.vulncheck.com/advisories/imagemagick-policy-bypass-via-incorrect-path-validation",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}