CVE-2026-45397

MEDIUM

Open WebUI: Unauthenticated RAG Configuration Disclosure

Title source: cna
STIX 2.1

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, GET /api/v1/retrieval/ returns live RAG pipeline configuration to any unauthenticated HTTP client. No Authorization header, cookie, or API key is required. Every adjacent endpoint on the same router (/embedding, /config) is correctly guarded by get_admin_user making this a targeted omission. This vulnerability is fixed in 0.9.5.

References (1)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0004
EPSS Percentile 11.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-306
Status published
Products (3)
open-webui/open-webui < 0.9.5
openwebui/open_webui < 0.9.5
pypi/open-webui 0 - 0.9.5PyPI
Published May 15, 2026
Tracked Since May 16, 2026