{"action":"Upgrade django to 1.2.7 or later.","affected":[{"fixed":"1.2.7","introduced":"0"},{"fixed":"1.3.1","introduced":"1.3"}],"component":"django","cve_ids":["CVE-2011-4139"],"ecosystem":"PyPI","epss":0.02323,"exploited":false,"fixed_versions":["1.2.7","1.3.1"],"ghsa_id":"GHSA-rm2j-x595-q9cj","id":"tcs_01M5KG5J3QKMBK29J6QXM1XPAV","modified_at":"2026-06-10T17:00:52.472886570Z","published_at":"2011-10-19T10:55:00Z","references":["https://osv.dev/vulnerability/PYSEC-2011-4","https://bugzilla.redhat.com/show_bug.cgi?id=737366","https://www.djangoproject.com/weblog/2011/sep/09/","http://openwall.com/lists/oss-security/2011/09/11/1","https://www.djangoproject.com/weblog/2011/sep/10/127/","http://openwall.com/lists/oss-security/2011/09/13/2","http://secunia.com/advisories/46614","http://www.debian.org/security/2011/dsa-2332","https://hermes.opensuse.org/messages/14700881","https://github.com/advisories/GHSA-rm2j-x595-q9cj"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2011-4","url":"https://osv.dev/vulnerability/PYSEC-2011-4"}],"summary":"Django before 1.2.7 and 1.3.x before 1.3.1 uses a request's HTTP Host header to construct a full URL in certain circumstances, which allows remote attackers to conduct cache poisoning attacks via a cr"}