{"action":"Upgrade python2.7 to 2.7.16-3 or later.","affected":[{"fixed":"2.7.16-3","introduced":"0"}],"component":"python2.7","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:11","exploited":false,"fixed_versions":["2.7.16-3"],"id":"tcs_01M5NDBMH5CGRM017WDK93PPBJ","modified_at":"2026-08-04T06:04:36.619890399Z","published_at":"2019-07-13T21:15:10.377Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-20852","https://security-tracker.debian.org/tracker/CVE-2018-20852"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-20852","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-20852"}],"summary":"http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong serve"}