CVE-2026-70490CWE-863broken-access-control

CVE-2026-70490

Medium · published August 5, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
19.7
In the wild
Unconfirmed
What it is

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.8 until 0.11.0, the terminal WebSocket route in backend/open_webui/routers/terminals.py authenticated its own first-message JWT and never applied the verified-user role gate that get_verified_user enforces on HTTP terminal routes. An account whose role is pending, including a registered but unapproved account or an account deactivated back to pending, can open an interactive terminal session when at least one terminal server is configured and its access grants cover the account. This loses the account-approval boundary for terminal access while the HTTP terminal routes correctly reject the same account. This issue is fixed in 0.11.0.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00283 · 19.7th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-08-05T01:16Z
Affected products (1)
ProductVersionsFixed in
openwebui/open_webui≥ 0.8.8, < 0.11.00.11.0
References (1)
EPSS history
Timeline
  • 04 AUG 20:44Z
    Open WebUI: Unapproved accounts can open terminal sessions via a WebSocket auth path missing the role check
    cvelistv5