{"id":"CVE-2026-46386","state":"PUBLISHED","title":"OpenProject: Pre-authentication RCE in openproject/openproject Docker image via default `SECRET_KEY_BASE=OVERWRITE_ME` and `cookies_serializer = :marshal`","description":"OpenProject is open-source, web-based project management software. Prior to , the official openproject/openproject Docker image ships ENV SECRET_KEY_BASE=OVERWRITE_ME as the default Rails master key. Combined with cookies_serializer = :marshal, this gives any logged-in user a deterministic Marshal-deserialization path reachable via the /my/two_factor_devices cookie reader This vulnerability is fixed in .","publishedAt":"2026-06-26T19:26:39.961Z","updatedAt":"2026-06-29T13:23:10.174Z","severity":{"score":9.9,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["opf openproject"],"affected":[{"vendor":"opf","product":"openproject","versions":[{"version":">= 8.3.0, < 17.2.4","status":"affected"},{"version":">= 17.3.0, < 17.3.2","status":"affected"}]}],"references":["https://github.com/opf/openproject/security/advisories/GHSA-r85r-gjq2-f83r"],"weaknesses":["CWE-502","CWE-798","CWE-1188","CWE-1392"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46386.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46386","state":"PUBLISHED","datePublished":"2026-06-26T19:26:39.961Z","dateUpdated":"2026-06-29T13:23:10.174Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-13T19:53:47.922Z"},"containers":{"cna":{"title":"OpenProject: Pre-authentication RCE in openproject/openproject Docker image via default `SECRET_KEY_BASE=OVERWRITE_ME` and `cookies_serializer = :marshal`","descriptions":[{"lang":"en","value":"OpenProject is open-source, web-based project management software. Prior to , the official openproject/openproject Docker image ships ENV SECRET_KEY_BASE=OVERWRITE_ME as the default Rails master key. Combined with cookies_serializer = :marshal, this gives any logged-in user a deterministic Marshal-deserialization path reachable via the /my/two_factor_devices cookie reader This vulnerability is fixed in ."}],"affected":[{"vendor":"opf","product":"openproject","versions":[{"version":">= 8.3.0, < 17.2.4","status":"affected"},{"version":">= 17.3.0, < 17.3.2","status":"affected"}]}],"references":[{"url":"https://github.com/opf/openproject/security/advisories/GHSA-r85r-gjq2-f83r","name":"https://github.com/opf/openproject/security/advisories/GHSA-r85r-gjq2-f83r","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.9,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","lang":"en","description":"CWE-502: Deserialization of Untrusted Data","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-798","lang":"en","description":"CWE-798: Use of Hard-coded Credentials","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1188","lang":"en","description":"CWE-1188: Insecure Default Initialization of Resource","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-1392","lang":"en","description":"CWE-1392: Use of Default Credentials","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-26T19:26:39.961Z"},"source":{"advisory":"GHSA-r85r-gjq2-f83r","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-29T13:23:02.803038Z","id":"CVE-2026-46386","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-29T13:23:10.174Z"}}]}}}