CVE-2026-45397CWE-306

Open WebUI: Unauthenticated RAG Configuration Disclosure

Medium · published May 15, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
56.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00808 · 56.4th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-05-15T20:34Z
EPSS history
Timeline
  • 15 MAY 20:34Z
    Open WebUI: Unauthenticated RAG Configuration Disclosure
    cvelistv5