CVE-2026-87999

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. Prior to 0.11.1, POST /api/v1/retrieval/process/web and POST /api/v1/retrieval/process/web/search in backend/open_webui/retrieval/web/utils.py treated Python's globally routable address classification as proof that a destination was external. An authenticated user could make an Azure-hosted instance fetch and return content from 168.63.129.16, the Azure platform channel, as well as other reserved ranges that the standard classification did not reject. 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
4.7
Exploitability score
1.8
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Severity
HIGH

Weaknesses

security-advisories@github.com
CWE-918

Social media

Hype score
Not currently trending

Configurations