{"action":"Upgrade open-webui to 0.9.0 or later.","affected":[{"fixed":"0.9.0","introduced":"0.8.0"}],"component":"open-webui","cve_ids":["CVE-2026-88005"],"ecosystem":"PyPI","epss":0.00371,"exploited":false,"fixed_versions":["0.9.0"],"ghsa_id":"GHSA-4qg5-cxx4-g927","id":"tcs_01M5KEYTJV7GQWE05T2TTWK61H","modified_at":"2026-10-01T17:56:19.737044182Z","published_at":"2026-09-10T15:09:20Z","references":["https://osv.dev/vulnerability/GHSA-4qg5-cxx4-g927","https://github.com/open-webui/open-webui/security/advisories/GHSA-4qg5-cxx4-g927","https://github.com/open-webui/open-webui/pull/23639","https://github.com/open-webui/open-webui/commit/fb5ef978bfb451c3f2221931e08e54250cec58ca","https://github.com/open-webui/open-webui","https://github.com/open-webui/open-webui/releases/tag/v0.9.0"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-4qg5-cxx4-g927","url":"https://osv.dev/vulnerability/GHSA-4qg5-cxx4-g927"}],"summary":"Open WebUI: Users denied by the OAuth domain allowlist or role policy can still sign in via token exchange"}