CVE-2026-59224

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, backend/open_webui/routers/terminals.py built the ws_terminal upstream URL from an unencoded session_id and appended user_id as a query parameter, allowing query injection to make the terminal backend resolve another user identity; the HTTP proxy path also forwarded X-User-Id as an integrity-unbound identity claim. This issue is fixed in version 0.10.0.

• CWE-287
• CWE-290

• https://github.com/open-webui/open-webui/commit/5f3a628a8d291bb5d33e1a0b0c89fb62a2927934Patch
• https://github.com/open-webui/open-webui/pull/26042Issue Tracking, Patch
• https://github.com/open-webui/open-webui/releases/tag/v0.10.0Product, Release Notes
• https://github.com/open-webui/open-webui/security/advisories/GHSA-j657-m4c4-24jqMitigation, Vendor Advisory

Published

Jul 9, 2026

Last Modified

Jul 10, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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