{"id":"CVE-2026-75839","summary":"ArcadeDB before 26.8.1 Information Disclosure via Cluster Endpoints","details":"ArcadeDB (com.arcadedb:arcadedb-server) versions \u003c= 26.7.3 contain an insecure direct object reference (IDOR) vulnerability in the Raft cluster-info endpoints (GetClusterHandler and PostBootstrapStateHandler), which authenticate but do not authorize access. On an ArcadeDB HA cluster (only reachable when arcadedb.ha.enabled is set and the ha-raft module is loaded), any authenticated user — including one granted access to only one database or none — can enumerate the full server database registry and retrieve per-database metadata such as database names, last transaction IDs, bootstrap fingerprints, and peer/leader cluster topology, resulting in cross-database information disclosure. Fixed in 26.8.1.","aliases":["GHSA-79wq-w74x-74ch"],"modified":"2026-08-20T03:30:36.442281160Z","published":"2026-08-18T11:19:48.550Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75839.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-200"]},"references":[{"type":"ADVISORY","url":"https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-79wq-w74x-74ch"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75839.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75839"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/arcadedb-before-information-disclosure-via-cluster-endpoints"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/arcadedata/arcadedb","events":[{"introduced":"0"},{"fixed":"87bdc67f1f0331fa2d07e932a550064c118eae70"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"26.8.1"}],"source":"AFFECTED_FIELD"}}],"versions":["untagged-3026f5635164cd300b5b","26.7.2","26.7.1","26.6.1","26.5.1","26.4.2","26.3.2","26.3.1","26.2.1","26.1.1","25.12.1","25.11.1","25.10.1","25.9.1","25.8.1","25.7.1","25.6.1","25.4.1","25.3.2","25.3.1","25.2.1","25.1.1","24.11.2","24.11.1","24.10.1","24.6.1","24.5.1","24.4.1","24.2.1","24.1.1","23.12.2","23.12.1","23.11.1","23.10.1","23.9.1","23.7.1","23.6.1","23.5.1","23.4.1","23.3.1","23.2.1","23.1.2","23.1.1","22.12.1","22.11.1","22.10.1","22.9.1","22.8.1","22.6.1","22.2.1","22.1.3","22.1.2","21.12.1","21.11.1","21.10.2","21.10.1","21.9.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75839.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}