Docs before 5.4.1 fails to properly revoke websocket collaboration connections when access is revoked at parent documents. Attackers with revoked access can retain real-time read and write access to sub-documents through open websocket sessions that are never disconnected.

Docs before 5.4.1 fails to properly revoke websocket collaboration connections when access is revoked at parent documents. Attackers with revoked access can retain real-time read and write access to sub-documents through open websocket sessions that are never disconnected.