{"cve":"CVE-2014-9720","nvd":{"published":"2020-01-24T18:15:12.053","modified":"2026-06-17T00:18:52.410","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-203"],"references":["http://openwall.com/lists/oss-security/2015/05/19/4","http://www.tornadoweb.org/en/stable/releases/v3.2.2.html","https://bugzilla.novell.com/show_bug.cgi?id=930362","https://bugzilla.redhat.com/show_bug.cgi?id=1222816","https://github.com/tornadoweb/tornado/commit/1c36307463b1e8affae100bf9386948e6c1b2308"],"products":["tornadoweb:tornado"],"source":"nvd","synced_at":"2026-10-19T21:01:01.339895972+00:00"},"epss":{"cve":"CVE-2014-9720","score":0.0251,"percentile":0.84767,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8vpw-mgpf-mpvv","url":"https://osv.dev/vulnerability/GHSA-8vpw-mgpf-mpvv","summary":"Tornado XSRF cookie allows side-channel attack against TLS (BREACH attack)","modified":"2024-11-13T23:00:51.921404Z","packages":[{"ecosystem":"PyPI","name":"tornado","purl":"pkg:pypi/tornado","ranges":["<3.2.2"],"fixed":["3.2.2"]}]},{"id":"PYSEC-2020-213","url":"https://osv.dev/vulnerability/PYSEC-2020-213","summary":"","modified":"2026-06-10T17:02:44.825142638Z","packages":[{"ecosystem":"PyPI","name":"tornado","purl":"pkg:pypi/tornado","ranges":["<3.2.2"],"fixed":["3.2.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}