{"action":"Upgrade starlette to 0.49.1 or later.","affected":[{"fixed":"0.49.1","introduced":"0.39.0"}],"component":"starlette","cve_ids":["CVE-2025-62727"],"ecosystem":"PyPI","epss":0.008,"exploited":false,"fixed_versions":["0.49.1"],"ghsa_id":"GHSA-7f5h-v6xp-fcq8","id":"tcs_01M5KF5STWKTNJTGEWTDG1TAMF","modified_at":"2026-09-10T03:50:29.490992457Z","published_at":"2025-10-28T20:38:01Z","references":["https://osv.dev/vulnerability/GHSA-7f5h-v6xp-fcq8","https://github.com/Kludex/starlette/security/advisories/GHSA-7f5h-v6xp-fcq8","https://nvd.nist.gov/vuln/detail/CVE-2025-62727","https://github.com/Kludex/starlette/commit/4ea6e22b489ec388d6004cfbca52dd5b147127c5","https://github.com/Kludex/starlette/commit/69ed26a85956ef4bd0161807eb27abf49be7cd3c","https://github.com/Kludex/starlette","https://github.com/Kludex/starlette/releases/tag/0.49.1"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-7f5h-v6xp-fcq8","url":"https://osv.dev/vulnerability/GHSA-7f5h-v6xp-fcq8"}],"summary":"Starlette vulnerable to O(n^2) DoS via Range header merging in ``starlette.responses.FileResponse``"}