Open WebUI: Any authenticated user can suppress calendar alerts instance-wide via a non-numeric alert value

Any authenticated user can suppress calendar alerts instance-wide via a non-numeric alert value Summary Calendar events carry a free-form meta object that is stored exactly as submitted, with no validation of the values inside it. The scheduler reads the per-event alert offset out of that object ...

CVE-2026-87012

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, backend/openwebui/models/calendar.py stored the calendar event meta.alertminutes value without type validation and the shared upcoming-event scheduler compared that value numerically. An...

PT-2026-89159

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.9.0 through 0.11.0 Description An issue exists in the calendar event model within backend/open webui/models/calendar.py where the meta.alert minutes value is stored without type validation. Because the shared upcoming-eve...