MEDIUM 5.3 NVD
CVE-2026-109287
Open WebUI from 0.9.6 before 0.11.4 contains an authorization flaw where the knowledge base file listing does not verify that a supplied directory_id belongs to
Open WebUI from 0.9.6 before 0.11.4 contains an authorization flaw where the knowledge base file listing does not verify that a supplied directory_id belongs to the requested knowledge base. Users with read access to any knowledge base can supply a retained foreign directory UUID to GET /api/v1/knowledge/{id}/files. The returned breadcrumbs expose folder names, owner user ids and knowledge base ids of that directory and all its ancestors.
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-jx3w-3pqq-7f3w
- https://www.vulncheck.com/advisories/open-webui-0.9.6-before-0.11.4-information-disclosure
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-10-12 via NVD.
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