CVE-2026-87014CWE-613CWE-863broken-access-control

CVE-2026-87014

Medium · published September 10, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
42.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00513 · 42.9th percentile
Weaknesses
CWE-613 · Insufficient Session Expiration; CWE-863 · Incorrect Authorization
Published
2026-09-10T01:17Z
Affected products (1)
ProductVersionsFixed in
openwebui/open_webui≥ 0.9.0, < 0.11.10.11.1
References (4)
EPSS history
Timeline
  • 11 SEP 03:19Z
    EPSS moved — → 0%
    epss
  • 09 SEP 21:01Z
    Open WebUI: Admin demoted through SSO role sync keeps read and write access to all users' notes
    cvelistv5