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CVE-2026-59224Open WebUI: Terminal proxy forwards a spoofable, integrity-unbound user identity to the upstream (X-User-Id header and ws_terminal session_id query injection)
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.
8.0 HIGHEPSS 0.39%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 8.0 | HIGH | 3.1GitHub_M (CNA) | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-59224
- Status
- Analyzed
- Assigner (CNA)
- GitHub_M
- Published
- Jul 9, 2026
- Last modified
- 2026-07-10 15:22 UTC
Affected Products
As published by the CNA in the CVE record.
open-webuiopen-webui1 version range
- < 0.10.0
References
- github.com https://github.com/open-webui/open-webui/commit/5f3a628a8d291bb5d33e1a0b0c89fb62a2927934
- github.com https://github.com/open-webui/open-webui/pull/26042
- github.com https://github.com/open-webui/open-webui/releases/tag/v0.10.0
- github.com https://github.com/open-webui/open-webui/security/advisories/GHSA-j657-m4c4-24jq