{"cve":"CVE-2011-4139","nvd":{"published":"2011-10-19T10:55:04.580","modified":"2026-06-16T23:34:29.940","status":"Modified","description":"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 crafted request.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://openwall.com/lists/oss-security/2011/09/11/1","http://openwall.com/lists/oss-security/2011/09/13/2","http://secunia.com/advisories/46614","http://www.debian.org/security/2011/dsa-2332","https://bugzilla.redhat.com/show_bug.cgi?id=737366"],"products":["djangoproject:django"],"source":"nvd","synced_at":"2026-10-19T19:59:31.623151214+00:00"},"epss":{"cve":"CVE-2011-4139","score":0.02323,"percentile":0.83483,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rm2j-x595-q9cj","url":"https://osv.dev/vulnerability/GHSA-rm2j-x595-q9cj","summary":"Django Vulnerable to Cache Poisoning","modified":"2024-09-16T22:47:39.460622Z","packages":[{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":["<1.2.7"],"fixed":["1.2.7"]},{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=1.3 <1.3.1"],"fixed":["1.3.1"]}]},{"id":"PYSEC-2011-4","url":"https://osv.dev/vulnerability/PYSEC-2011-4","summary":"","modified":"2026-06-10T17:00:52.472886570Z","packages":[{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":["<1.2.7",">=1.3 <1.3.1"],"fixed":["1.2.7","1.3.1"]}]}],"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."]}