{"id":"CVE-2011-4138","aliases":["GHSA-wxg3-mfph-qg9w","PYSEC-2011-3"],"url":"https://o3.security/vulnerability/CVE-2011-4138","summary":"Django Might Allow CSRF Requests via URL Verification","details":"The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 originally tests a URL's validity through a HEAD request, but then uses a GET request for the new target URL in the case of a redirect, which might allow remote attackers to trigger arbitrary GET requests with an unintended source IP address via a crafted Location header.","published":"2011-10-19T10:55:04Z","modified":"2026-04-10T03:42:03.055908Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"django","fixedVersion":"1.2.7"},{"ecosystem":"PyPI","name":"django","fixedVersion":"1.3.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://secunia.com/advisories/46614"},{"type":"ADVISORY","url":"http://www.debian.org/security/2011/dsa-2332"},{"type":"ADVISORY","url":"https://www.djangoproject.com/weblog/2011/sep/09/"},{"type":"FIX","url":"http://openwall.com/lists/oss-security/2011/09/11/1"},{"type":"FIX","url":"http://openwall.com/lists/oss-security/2011/09/13/2"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=737366"},{"type":"FIX","url":"https://www.djangoproject.com/weblog/2011/sep/09/"},{"type":"FIX","url":"https://www.djangoproject.com/weblog/2011/sep/10/127/"},{"type":"WEB","url":"https://hermes.opensuse.org/messages/14700881"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-10T03:42:03.055908Z"}}