CVE-2026-75850 ArcadeDB before 26.8.1 Per-Type ACL Bypass via Batch Handlers

ArcadeDB before 26.8.1 fails to bind the authenticated principal setCurrentUser on its batch and time-series HTTP handlers. Because no principal is bound on the worker thread, the engine's fine-grained per-type ACL layer LocalBucket.checkPermissionsOnFile does not execute for these handlers. In...