{"id":"CVE-2026-122006","state":"PUBLISHED","title":"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) be","description":"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.","publishedAt":"2026-11-04T14:12:17.584Z","updatedAt":"2026-11-04T14:12:17.584Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"mitre"},"assigner":"mitre","products":["rubyonrails Active Storage"],"affected":[{"vendor":"rubyonrails","product":"Active Storage","packageURL":"pkg:gem/activestorage","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"8.0.5.2","versionType":"custom"},{"version":"8.1","status":"affected","lessThan":"8.1.4.1","versionType":"custom"}]}],"references":["https://github.com/rails/rails/security/advisories/GHSA-f3w6-w445-fwh9","https://github.com/rails/rails/releases/tag/v8.1.4.1","https://github.com/rails/rails/releases/tag/v8.0.5.2"],"weaknesses":["CWE-1188"],"ingestedAt":"2026-11-04T15:02:07.052Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/122xxx/CVE-2026-122006.json","commit":"13e63c487a61d515ded6813ad0b3cf6b54ee85e3","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-122006","state":"PUBLISHED","datePublished":"2026-11-04T14:12:17.584Z","dateUpdated":"2026-11-04T14:12:17.584Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-11-04T14:12:17.191Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"rubyonrails","product":"Active Storage","packageURL":"pkg:gem/activestorage","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"8.0.5.2","versionType":"custom"},{"version":"8.1","status":"affected","lessThan":"8.1.4.1","versionType":"custom"}]}],"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"}],"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":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-11-04T14:12:17.584Z"},"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"}]}]}]}}}}