{"action":"Upgrade open-webui to 0.9.5 or later.","affected":[{"fixed":"0.9.5","introduced":"0"}],"component":"open-webui","cve_ids":["CVE-2026-45398"],"ecosystem":"PyPI","epss":0.00489,"exploited":false,"fixed_versions":["0.9.5"],"ghsa_id":"GHSA-4g37-7p2c-38r9","id":"tcs_01M5KEY31ZDBBWTPWBNAASHFEW","modified_at":"2026-07-13T16:43:03.444134619Z","published_at":"2026-05-14T20:26:42Z","references":["https://osv.dev/vulnerability/GHSA-4g37-7p2c-38r9","https://github.com/open-webui/open-webui/security/advisories/GHSA-4g37-7p2c-38r9","https://nvd.nist.gov/vuln/detail/CVE-2026-45398","https://github.com/open-webui/open-webui/pull/22109","https://github.com/open-webui/open-webui","https://github.com/open-webui/open-webui/releases/tag/v0.9.5"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-4g37-7p2c-38r9","url":"https://osv.dev/vulnerability/GHSA-4g37-7p2c-38r9"}],"summary":"Open WebUI Vulnerable to IDOR: Retrieval API Bypasses Knowledge Base Access Controls"}