Vulnerability in Open-Webui
CVE-2026-59219
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Open-Webui — versions >= 0.9.0, < 0.10.0
- Openwebui Open Webui
Weakness classification (CWE)
References
- github.com/open-webui/open-webui/commit/33b91bd8ae8a100a5a306c91441a7d0b422c4cde (Patch)
- github.com/open-webui/open-webui/releases/tag/v0.10.0 (Product, Release Notes)
- github.com/open-webui/open-webui/security/advisories/GHSA-855v-hq7w-jmjw (Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-59219?
- CVE-2026-59219 is a high-severity vulnerability in Open-Webui, classified under Insufficient Session Expiration. CVSS score: 7.1/10. Published 2026-07-09.
- How severe is CVE-2026-59219?
- High severity. CVSS v3 base score is 7.1 out of 10.