CVE-2026-75843
CRITICAL
NVD
CVSS Score
9.9
Severity
CRITICAL
Published
Aug 18, 2026
Vendor
unknown
Description
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.