CVE-2026-44560

Open WebUI: Unauthorized File and Knowledge Base Content Access via RAG Vector Search

State: Published
Severity: 6.5 Medium
Published: May 15, 2026
Updated: May 15, 2026
Reserved: May 6, 2026

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the type: "file" (non-full-context), type: "text" with collection_name, and bare collection_name/collection_names paths in the get_sources_from_items function perform vector store queries without any authorization check, allowing users to extract content from files and knowledge bases they do not have access to. This vulnerability is fixed in 0.9.0.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
open-webuiopen-webui	< 0.9.0Affected

References

https://github.com/open-webui/open-webui/security/advisories/GHSA-h36f-rqpx-j5wx

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