CVE-2026-75839
MediumCVSS 4.3Summary
ArcadeDB (com.arcadedb:arcadedb-server) versions up to 26.7.3 contain an 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.
Risk Assessment
The risk is unauthorized access to metadata of all databases in the HA cluster, potentially exposing sensitive information about system structure and state. An attacker with minimal privileges can gather data about databases and topology, which may facilitate further attacks.
Recommendation
It is recommended to immediately upgrade ArcadeDB to version 26.8.1 or later, which includes the fix. Additionally, restrict access to cluster-info endpoints to trusted users and networks only.
Original NVD description (English source)
ArcadeDB (com.arcadedb:arcadedb-server) versions <= 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.