EUVD-2026-97601

Open WebUI from 0.9.0 before 0.11.4 contains a denial of service vulnerability that allows authenticated users with automations permission to stall the instance by submitting unsatisfiable recurrence rules. Attackers can repeatedly send rules like February 30th to the automations create or update...

CVE-2026-109299

Versions of Open WebUI from 0.9.0 before 0.11.4 are vulnerable to a Denial of Service (DoS) attack due to insufficient validation of recurrence rules. Authenticated users with automations permissions can submit unsatisfiable rules, such as "February 30th," to the automations create or update endp...

CVE-2026-70489 Open WebUI: Instance-wide stall via automation recurrence rules that force multi-second parsing

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.0, automation recurrence parsing in backend/openwebui/utils/automations.py anchored minutely and hourly rules at a fixed date of 2000-01-01 and then walked forward one interval at a time to...