CVE-2026-59224
HIGHOpen WebUI: Terminal proxy forwards a spoofable, integrity-unbound user identity to the upstream (X-User-Id header and ws_terminal session_id query injection)
Title source: cnaDescription
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.
References (4)
Core 4
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/open-webui/open-webui/security/advisories/GHSA-j657-m4c4-24jq
X_Refsource_Misc x_refsource_misc
https://github.com/open-webui/open-webui/pull/26042
X_Refsource_Misc x_refsource_misc
https://github.com/open-webui/open-webui/commit/5f3a628a8d291bb5d33e1a0b0c89fb62a2927934
X_Refsource_Misc x_refsource_misc
https://github.com/open-webui/open-webui/releases/tag/v0.10.0
Scores
CVSS v3
8.0
EPSS
0.0029
EPSS Percentile
20.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-287
CWE-290
Status
published
Products (3)
open-webui/open-webui
< 0.10.0
openwebui/open_webui
< 0.10.0
pypi/open-webui
0 - 0.10.0PyPI
Published
Jul 09, 2026
Tracked Since
Jul 09, 2026