CVE-2026-67343: Arcadedata Arcadedb

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

ArcadeDB versions before 26.7.2 fail to properly redact the cluster token in the GET /api/v1/server endpoint, allowing authenticated users to retrieve the arcadedb.ha.clusterToken value in cleartext. Attackers can use the leaked token with X-ArcadeDB-Cluster-Token and X-ArcadeDB-Forwarded-User headers to impersonate root and execute administrative actions including user creation, database operations, and server shutdown.

Affected products

• Arcadedata Arcadedb: before 26.7.2 (fixed in 26.7.2)

Published 2026-08-01. Last modified 2026-08-31.