CVE-2026-44553 Open WebUI: Stale Admin Role in Socket.IO Session Pool Enables Post-Demotion Cross-User Note Access

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, administrative role changes and user deletions do not iterate SESSIONPOOL to disconnect affected sessions. As a result, a user whose admin role has been revoked retains admin...