{"action":"Upgrade python-tornado to 2.4.1-3 or later.","affected":[{"fixed":"2.4.1-3","introduced":"0"}],"component":"python-tornado","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.4.1-3"],"id":"tcs_01M5NACSSNXF29PZF4BY1Q77C2","modified_at":"2026-09-01T20:03:16.957495412Z","published_at":"2013-10-09T14:53:20.230Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2013-2099","https://security-tracker.debian.org/tracker/CVE-2013-2099"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2013-2099#Debian:14/python-tornado","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2013-2099"}],"summary":"Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python ve"}