{"id":"CVE-2026-23989","state":"PUBLISHED","title":"REVA Public Link Exploit","description":"REVA is an interoperability platform. Prior to 2.42.3 and 2.40.3, a bug in the GRPC authorization middleware of the \"Reva\" component of OpenCloud allows a malicious user to bypass the scope verification of a public link. By exploiting this via the the \"archiver\" service this can be leveraged to create an archive (zip or tar-file) containing all resources that this creator of the public link has access to. This vulnerability is fixed in 2.42.3 and 2.40.3.","publishedAt":"2026-02-06T18:28:25.075Z","updatedAt":"2026-02-06T18:52:19.409Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["opencloud-eu reva"],"affected":[{"vendor":"opencloud-eu","product":"reva","versions":[{"version":"< 2.40.3","status":"affected"},{"version":">= 2.41.0, < 2.42.3","status":"affected"}]}],"references":["https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg","https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23989.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23989","state":"PUBLISHED","datePublished":"2026-02-06T18:28:25.075Z","dateUpdated":"2026-02-06T18:52:19.409Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-01-19T18:49:20.657Z"},"containers":{"cna":{"title":"REVA Public Link Exploit","descriptions":[{"lang":"en","value":"REVA is an interoperability platform. Prior to 2.42.3 and 2.40.3, a bug in the GRPC authorization middleware of the \"Reva\" component of OpenCloud allows a malicious user to bypass the scope verification of a public link. By exploiting this via the the \"archiver\" service this can be leveraged to create an archive (zip or tar-file) containing all resources that this creator of the public link has access to. This vulnerability is fixed in 2.42.3 and 2.40.3."}],"affected":[{"vendor":"opencloud-eu","product":"reva","versions":[{"version":"< 2.40.3","status":"affected"},{"version":">= 2.41.0, < 2.42.3","status":"affected"}]}],"references":[{"url":"https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg","name":"https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1","name":"https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-02-06T18:28:25.075Z"},"source":{"advisory":"GHSA-9j2f-3rj3-wgpg","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-06T18:51:52.147279Z","id":"CVE-2026-23989","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-06T18:52:19.409Z"}}]}}}