{"id":"PYSEC-2020-213","details":"Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attackers to conduct a BREACH attack and determine this token via a series of crafted requests.","aliases":["CVE-2014-9720","GHSA-8vpw-mgpf-mpvv"],"modified":"2026-06-10T17:02:44.825142638Z","published":"2020-01-24T18:15:00Z","references":[{"type":"FIX","url":"https://github.com/tornadoweb/tornado/commit/1c36307463b1e8affae100bf9386948e6c1b2308"},{"type":"REPORT","url":"https://bugzilla.novell.com/show_bug.cgi?id=930362"},{"type":"WEB","url":"http://openwall.com/lists/oss-security/2015/05/19/4"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1222816"},{"type":"WEB","url":"http://www.tornadoweb.org/en/stable/releases/v3.2.2.html"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-8vpw-mgpf-mpvv"}],"affected":[{"package":{"name":"tornado","ecosystem":"PyPI","purl":"pkg:pypi/tornado"},"ranges":[{"type":"GIT","repo":"https://github.com/tornadoweb/tornado","events":[{"introduced":"0"},{"fixed":"1c36307463b1e8affae100bf9386948e6c1b2308"}]},{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.2"}]}],"versions":["0.2","1.0","1.1","1.1.1","1.2","1.2.1","2.0","2.1","2.1.1","2.2","2.2.1","2.3","2.4","2.4.1","3.0","3.0.1","3.0.2","3.1","3.1.1","3.2","3.2.1","v3.2.1","v3.2.0","v3.2.0b2","v3.2.0b1","v3.1.0","v3.0.1","v3.0.0","v2.1.1","v2.3.0","v2.2.0","v2.1.0","v2.0.0","v1.2.0","v1.1.0","v1.0.0"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/tornado/PYSEC-2020-213.yaml"}}],"schema_version":"1.7.5"}