CVE-2026-59219: Openwebui Open Webui

High severity, CVSS 7.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 before 0.10.0 with Redis configured, Socket.IO connect, user-join, join-channels, join-note, and the terminal websocket first-message authentication used decode_token without the Redis-backed is_valid_token revocation check, allowing revoked JWTs to continue authenticating realtime connections. This issue is fixed in version 0.10.0.

Affected products

• Openwebui Open Webui: from 0.9.0, before 0.10.0 (fixed in 0.10.0)

Published 2026-07-09. Last modified 2026-07-10.