CVE-2026-109289CWE-613

CVE-2026-109289

Medium · published October 12, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
11.2
In the wild
Unconfirmed
What it is

Open WebUI from 0.8.8 before 0.11.4 contains an improper authorization vulnerability that allows deactivated users to keep executing terminal commands through an already open terminal WebSocket. Because the terminal proxy route in terminals.py checks access only on the first message, deactivated users can keep running commands and reading or writing files on the terminal server.

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
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00214 · 11.2th percentile
Weakness
CWE-613 · Insufficient Session Expiration
Published
2026-10-12T21:17Z
References (2)
https://github.com/open-webui/open-webui/security/advisories/GHSA-6g45-8g27-fh8q · [email protected]https://www.vulncheck.com/advisories/open-webui-0.8.8-before-0.11.4-improper-session-revocation-via-terminal-websocket · [email protected]
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:04Z
    Open WebUI 0.8.8 before 0.11.4 Improper Session Revocation via Terminal WebSocket
    cvelistv5
  • 12 OCT 16:04Z
    Open WebUI 0.8.8 before 0.11.4 Improper Session Revocation via Terminal WebSocket
    cvelistv5