CVE-2026-76223: Arcadedata Arcadedb

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

ArcadeDB (com.arcadedb) versions 26.7.3 and earlier fail to enforce the UPDATE_SCHEMA permission check when a DEFINE FUNCTION statement targets an already-existing function library. A user with only database access can add or overwrite SQL or Cypher functions in an existing library and persist the change, enabling tampering with admin-defined function logic. The issue is fixed in 26.8.1. (JavaScript functions still trigger the UPDATE_SECURITY check and are not affected.)

Affected products

• Arcadedata Arcadedb: before 26.8.1 (fixed in 26.8.1)

Published 2026-08-19. Last modified 2026-09-08.