CVE-2026-75843
CriticalCVSS 9.9Summary
ArcadeDB before 26.8.1 fails to bind the authenticated principal on the gRPC transaction executor thread in beginTransaction, allowing authenticated readers to execute JavaScript commands without scripting authorization checks. Attackers can execute executeCommand with a transaction ID to run unrestricted JavaScript that creates server-wide administrator accounts.
Risk Assessment
An authenticated user with limited privileges can escalate to administrator role, potentially leading to full system compromise.
Recommendation
Upgrade ArcadeDB to version 26.8.1 or later, which fixes this issue.
Original NVD description (English source)
ArcadeDB before 26.8.1 fails to bind the authenticated principal on the gRPC transaction executor thread in beginTransaction, allowing authenticated readers to execute JavaScript commands without scripting authorization checks. Attackers can execute executeCommand with a transaction ID to run unrestricted JavaScript that creates server-wide administrator accounts.