{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-122006", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-11-04T14:12:17.191Z", "datePublished": "2026-11-04T14:12:17.584Z", "dateUpdated": "2026-11-04T14:12:17.584Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageURL": "pkg:gem/activestorage", "product": "Active Storage", "vendor": "rubyonrails", "versions": [{"lessThan": "8.0.5.2", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "8.1.4.1", "status": "affected", "version": "8.1", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "The activestorage gem before 8.1.4.1 for Ruby on Rails, when ImageMagick attachment processing occurs, can allow server read and write operations (e.g., reading secret_key_base) because the ImageMagick analyzer runs when a file is attached, and there is not an ImageMagick security policy to block unintended functionality."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-1188", "description": "CWE-1188 Initialization of a Resource with an Insecure Default", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-11-04T14:12:17.584Z"}, "references": [{"url": "https://github.com/rails/rails/security/advisories/GHSA-f3w6-w445-fwh9"}, {"url": "https://github.com/rails/rails/releases/tag/v8.1.4.1"}, {"url": "https://github.com/rails/rails/releases/tag/v8.0.5.2"}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}, "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:rubyonrails:active_storage:*:*:*:*:*:*:*:*", "versionEndExcluding": "8.0.5.2"}, {"vulnerable": true, "criteria": "cpe:2.3:a:rubyonrails:active_storage:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.1", "versionEndExcluding": "8.1.4.1"}]}]}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:gem/activestorage", "product": "Active Storage", "vendor": "rubyonrails", "versions": [{"lessThan": "8.0.5.2", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "8.1.4.1", "status": "affected", "version": "8.1", "versionType": "custom"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The activestorage gem before 8.1.4.1 for Ruby on Rails, when ImageMagick attachment processing occurs, can allow server read and write operations (e.g., reading secret_key_base) because the ImageMagick analyzer runs when a file is attached, and there is not an ImageMagick security policy to block unintended functionality."}], "id": "CVE-2026-122006", "lastModified": "2026-11-04T15:17:42.940", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-11-04T15:17:42.940", "references": [{"source": "cve@mitre.org", "url": "https://github.com/rails/rails/releases/tag/v8.0.5.2"}, {"source": "cve@mitre.org", "url": "https://github.com/rails/rails/releases/tag/v8.1.4.1"}, {"source": "cve@mitre.org", "url": "https://github.com/rails/rails/security/advisories/GHSA-f3w6-w445-fwh9"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1188"}], "source": "cve@mitre.org", "type": "Primary"}]}

{}

{}