CVE-2026-67356: Arcadedata Arcadedb

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

ArcadeDB before 26.7.3 binds the real LocalDatabase object into JavaScript trigger contexts with HostAccess.ALL, allowing schema-admins to call getSecurity().createUser() without permission checks. Attackers with UPDATE_SCHEMA permission can create triggers that execute JavaScript to create server-wide admin users, escalating privileges beyond their authorization level.

Affected products

• Arcadedata Arcadedb: before 26.7.3 (fixed in 26.7.3)

Published 2026-08-02. Last modified 2026-08-31.