{"action":"Upgrade prefect to 3.6.22 or later.","affected":[{"fixed":"3.6.22","introduced":"0"}],"component":"prefect","cve_ids":["CVE-2026-3514"],"ecosystem":"PyPI","epss":0.00476,"exploited":false,"fixed_versions":["3.6.22"],"ghsa_id":"GHSA-c635-393c-hcx2","id":"tcs_01M5KGYDE5G0JHDF5FDEP6Z505","modified_at":"2026-07-13T16:45:07.860887694Z","published_at":"2026-06-02T09:16:16.100Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2261","https://github.com/prefecthq/prefect/commit/e21617125335025b4b27e7d6f0ca028e8e8f3b79","https://huntr.com/bounties/c540e5e1-f74f-44f4-bfa0-9764ff6daa75","https://github.com/advisories/GHSA-c635-393c-hcx2"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2261","url":"https://osv.dev/vulnerability/PYSEC-2026-2261"}],"summary":"In version 3.6.19 of prefecthq/prefect, an authentication bypass vulnerability exists due to the improper handling of URL path exemptions for health check probes. Specifically, the authentication midd"}