{"action":"Upgrade tornado to 6.5.5 or later.","affected":[{"fixed":"6.5.5","introduced":"0"}],"component":"tornado","cve_ids":["CVE-2026-35536"],"ecosystem":"PyPI","epss":0.00246,"exploited":false,"fixed_versions":["6.5.5"],"ghsa_id":"GHSA-fqwm-6jpj-5wxc","id":"tcs_01M5KFFYR7X9R918HK0B6XXFRY","modified_at":"2026-09-10T03:50:44.255695398Z","published_at":"2026-04-03T06:31:31Z","references":["https://osv.dev/vulnerability/GHSA-fqwm-6jpj-5wxc","https://github.com/tornadoweb/tornado/security/advisories/GHSA-78cv-mqj4-43f7","https://nvd.nist.gov/vuln/detail/CVE-2026-35536","https://github.com/tornadoweb/tornado","https://github.com/tornadoweb/tornado/releases/tag/v6.5.5"],"severity":{"label":"high","score":7.2},"sources":[{"source":"osv","source_id":"GHSA-fqwm-6jpj-5wxc","url":"https://osv.dev/vulnerability/GHSA-fqwm-6jpj-5wxc"}],"summary":"Tornado has cookie attribute injection via .RequestHandler.set_cookie"}