Regular Expression Denial of Service (ReDoS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS through the automation recurrence rule process. An attacker can cause the application to become unresponsive and deny service to all users by submitting specially...

EUVD-2026-52917

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...

CVE-2026-70489

Technical details about CVE-2026-70489 are not publicly available in the provided documents. Monitor for updates.

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...

CVE-2026-70489: Uncontrolled Resource Consumption

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...