Missing Authentication for Critical Function

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authentication for Critical Function via unauthenticated access to the ydoc:awareness:update and ydoc:document:leave event handlers. An attacker can disrupt collaborative editing sessions, impersonate...

Read-Only Open WebUI Users Can Modify Collaborative Documents via Socket.IO

Read-Only Users Can Modify Collaborative Documents via Socket.IO Affected ComponentSocket.IO collaborative document editing handler:- backend/openwebui/socket/main.py lines 667-721, ydoc:document:update handler Affected VersionsCurrent main branch and likely all versions with collaborative note...

CVE-2026-44564

Open WebUI (self-hosted offline AI platform) contains a vulnerability in the ydoc:document:update Socket.IO handler that allows read-only users to modify in-memory Yjs documents. The handler validates room membership but does not verify write permission, and read-only users join the document room...