CVE-2026-75839: Exposure of Sensitive Information to an Unauthorized Actor in ArcadeData arcadedb
ArcadeDB versions up to 26.7.3 have an insecure direct object reference (IDOR) vulnerability in the Raft cluster-info endpoints. This flaw allows any authenticated user on a high-availability cluster to access metadata across all databases, including names, transaction IDs, and cluster topology, without proper authorization. The issue is fixed in version 26.8.1.
AI Analysis
Technical Summary
ArcadeDB (com.arcadedb:arcadedb-server) versions <= 26.7.3 contain an IDOR vulnerability in the Raft cluster-info endpoints (GetClusterHandler and PostBootstrapStateHandler). These endpoints authenticate users but do not enforce authorization, enabling any authenticated user—even those with limited or no database access—to enumerate the entire server database registry and retrieve sensitive per-database metadata such as database names, last transaction IDs, bootstrap fingerprints, and cluster topology information. This vulnerability affects ArcadeDB HA clusters where arcadedb.ha.enabled is set and the ha-raft module is loaded. The vulnerability is resolved in version 26.8.1.
Potential Impact
An attacker with valid authentication credentials can access sensitive metadata across all databases in an ArcadeDB HA cluster, potentially exposing information about database names, transaction states, and cluster configuration. This exposure does not allow direct modification or data extraction but leaks internal cluster details that could aid further attacks or reconnaissance.
Mitigation Recommendations
Upgrade ArcadeDB to version 26.8.1 or later, where this vulnerability is fixed. No other mitigation is indicated or required by the vendor advisory.
CVE-2026-75839: Exposure of Sensitive Information to an Unauthorized Actor in ArcadeData arcadedb
Description
ArcadeDB versions up to 26.7.3 have an insecure direct object reference (IDOR) vulnerability in the Raft cluster-info endpoints. This flaw allows any authenticated user on a high-availability cluster to access metadata across all databases, including names, transaction IDs, and cluster topology, without proper authorization. The issue is fixed in version 26.8.1.
CVSS v4.0
Score 5.3medium
Affected software
ArcadeData
arcadedb
pkg:maven/com.arcadedb/arcadedb-serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
ArcadeDB (com.arcadedb:arcadedb-server) versions <= 26.7.3 contain an IDOR vulnerability in the Raft cluster-info endpoints (GetClusterHandler and PostBootstrapStateHandler). These endpoints authenticate users but do not enforce authorization, enabling any authenticated user—even those with limited or no database access—to enumerate the entire server database registry and retrieve sensitive per-database metadata such as database names, last transaction IDs, bootstrap fingerprints, and cluster topology information. This vulnerability affects ArcadeDB HA clusters where arcadedb.ha.enabled is set and the ha-raft module is loaded. The vulnerability is resolved in version 26.8.1.
Potential Impact
An attacker with valid authentication credentials can access sensitive metadata across all databases in an ArcadeDB HA cluster, potentially exposing information about database names, transaction states, and cluster configuration. This exposure does not allow direct modification or data extraction but leaks internal cluster details that could aid further attacks or reconnaissance.
Mitigation Recommendations
Upgrade ArcadeDB to version 26.8.1 or later, where this vulnerability is fixed. No other mitigation is indicated or required by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-18T10:59:33.701Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a844367c6e8be033222974a
Added to database: 08/18/2026, 11:35:03 UTC
Last enriched: 09/11/2026, 23:06:00 UTC
Last updated: 10/02/2026, 14:46:10 UTC
Views: 64
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