CVE-2026-34222

Severity CVSS v4.0:

Pending analysis

Type:

CWE-285 Improper Authorization

Publication date:

01/04/2026

Last modified:

03/04/2026

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.11, there is a broken access control vulnerability in tool values. This issue has been patched in version 0.8.11.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.70 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

7.70

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://github.com/open-webui/open-webui/releases/tag/v0.8.11
https://github.com/open-webui/open-webui/security/advisories/GHSA-7429-hxcv-268m
http://seclists.org/fulldisclosure/2026/Apr/4