CVE-2026-55440

The CVE-2026-55440 flaw affects the Microsoft UFO open-source framework prior to version 3.0.7. In ufo/server/ws/handler.py, the COMMAND_RESULTS handler calls get_or_create_session in ufo/server/services/session_manager.py without owner_client_id, allowing an authenticated client to create an uno...

CVE-2026-55440 Microsoft UFO: COMMAND_RESULTS handler creates unowned sessions, allowing authenticated session-squatting denial of service

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.7, the COMMANDRESULTS handler in ufo/server/ws/handler.py called getorcreatesession in ufo/server/services/sessionmanager.py without ownerclientid, allowing an authenticated client to create ...