{"id":"CVE-2026-109287","published":"2026-10-12T17:17:21.763","lastModified":"2026-10-15T15:55:45.630","description":"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.","cvssScore":4.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-jx3w-3pqq-7f3w","tags":[]},{"url":"https://www.vulncheck.com/advisories/open-webui-0.9.6-before-0.11.4-information-disclosure-via-unscoped-directory-id","tags":[]},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-jx3w-3pqq-7f3w","tags":[]}],"exploitRefs":[{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-jx3w-3pqq-7f3w","tags":[]},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-jx3w-3pqq-7f3w","tags":[]}],"hasPoc":true,"ai":null}