CVE-2026-45397

Open WebUI: Unauthenticated RAG Configuration Disclosure

State: Published
Severity: 5.3 Medium
Published: May 15, 2026
Updated: May 18, 2026
Reserved: May 12, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-306 Missing Authentication for Critical Function

Affected Products

Product	Versions
open-webuiopen-webui	< 0.9.5Affected

References

https://github.com/open-webui/open-webui/security/advisories/GHSA-65pg-qhhw-mxwg

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