CVE-2026-87998

Published Sep 9, 2026

Last updated 3 days ago

Overview

Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/{id}/delete in backend/open_webui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection without a separate administrator check or a check for other dependent knowledge bases. A non-administrator with write access to one external knowledge base could delete shared instance configuration and make every other knowledge base using that connection unavailable. This issue is fixed in version 0.11.1.
Source
security-advisories@github.com
NVD status
Analyzed
Products
open_webui

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.1
Impact score
4.2
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Severity
HIGH

Weaknesses

security-advisories@github.com
CWE-269

Social media

Hype score
Not currently trending

Configurations