CVE-2026-59217

MEDIUM4.3

Open WebUI: Upload `metadata.knowledge_id` bypasses the knowledge-base write-access check (read-only users can add files to KB)

Published Jul 9, 2026

Modified 1 months ago

Details

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, the file upload path accepted metadata.knowledge_id and auto-linked uploaded files to a target knowledge base without applying the write-access check used by /api/v1/knowledge//file/add, allowing read-only knowledge-base users to add arbitrary files. This issue is fixed in version 0.10.0.

References

WEB

https://github.com/open-webui/open-webui/commit/b7626f05fb92b24ab923ad81a037071ebd5623d1

WEB

https://github.com/open-webui/open-webui/pull/26001

WEB

https://github.com/open-webui/open-webui/releases/tag/v0.10.0

WEB

https://github.com/open-webui/open-webui/security/advisories/GHSA-7r7x-gjvr-448g

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-59217

CVSS Analysis