ArcadeDB before 26.8.1 Information Disclosure via Cluster Endpoints

Description

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.

Scores

EPSS (exploitation in 30 days)

0.31% · top 76% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

• CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (opens in a new tab)All about CWE-200 and its CVEs

Affected products

• ArcadeData · arcadedb

  • affected < 26.8.1
  • unaffected 26.8.1

References (2)

• GitHub Security Advisory (GHSA-79wq-w74x-74ch) (opens in a new tab)vendor-advisory
• VulnCheck Advisory: ArcadeDB before 26.8.1 Information Disclosure via Cluster Endpoints (opens in a new tab)third-party-advisory

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-75839](https://trackcve.app/badge/CVE-2026-75839.svg)](https://trackcve.app/cve/CVE-2026-75839)

Record last updated 18 Aug 2026, 13:36 UTC.