CVE-2026-59219 Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout
Attackers can maintain unauthorized realtime access using revoked JWTs if Redis is configured, bypassing logout mechanisms in Open WebUI.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-59219?
CVE-2026-59219 is a high-severity authentication bypass vulnerability in Openwebui Open Webui, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-613
Which versions are affected by CVE-2026-59219?
3 open source packages ship an affected version, including open-webui. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
open-webui PyPI | From 0.9.0 | 0.10.0 |
open-webui PyPI | From 0.9.0 | 0.10.0 |
open-webui PyPI | From 0.9.0 | 0.10.0 |
Products include Openwebui Open Webui.
How do I fix CVE-2026-59219?
Upgrade open-webui to 0.10.0 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-59219 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59219 exists.
Other vulnerabilities in Openwebui Open Webui
- CVE-2026-44551 Open WebUI: LDAP Empty Password Authentication Bypass
- CVE-2026-56400 open-webui - Remote Code Execution via CORS Misconfiguration and Session Validation
- CVE-2024-8017 Cross-site Scripting (XSS) in open-webui/open-webui
- CVE-2026-45672 Open WebUI: Jupyter code execution works despite `ENABLE_CODE_EXECUTION=false` — feature gate bypassed
- CVE-2026-87995 Open WebUI: Same-origin XSS to account takeover via terminal port-preview iframe hardcoding allow-same-origin
Sources
Also known as GHSA-855v-hq7w-jmjw, PYSEC-2026-3595.