| Component | Open WebUI |
| Severity | medium (CVSS 6.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| Published (NVD) | 2026-09-09 |
| Last modified | 2026-09-15 |
| Affected versions | open_webui >= 0.9.0, < 0.11.1 |
| Fixed in | 0.11.1 |
| Weakness | CWE-613CWE-863 |
| CISA KEV | not listed |
NVD description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, role synchronization in backend/open_webui/routers/auths.py and backend/open_webui/utils/oauth.py updated an administrator's database role without invalidating the user record cached by backend/open_webui/socket/main.py. An administrator demoted through a trusted role header or OAuth role mapping could keep an already-open Socket.IO connection and continue reading or editing every user's collaborative notes until that connection closed. This issue is fixed in version 0.11.1.
What to do
- Upgrade Open WebUI to
0.11.1or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-87014
- https://github.com/open-webui/open-webui/security/advisories/GHSA-wjwr-xfp9-r66p
- https://github.com/open-webui/open-webui/commit/ce3c175e260709f359d7e6cbb3132f0572098b95
- https://github.com/open-webui/open-webui/releases/tag/v0.11.1
Read more
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