{"cve":"CVE-2021-44420","nvd":{"published":"2021-12-08T00:15:07.757","modified":"2026-06-17T04:12:19.117","status":"Modified","description":"In Django 2.2 before 2.2.25, 3.1 before 3.1.14, and 3.2 before 3.2.10, HTTP requests for URLs with trailing newlines could bypass upstream access control based on URL paths.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","score":7.3},"cwes":[],"references":["https://docs.djangoproject.com/en/3.2/releases/security/","https://groups.google.com/forum/#%21forum/django-announce","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/","https://security.netapp.com/advisory/ntap-20211229-0006/","https://www.djangoproject.com/weblog/2021/dec/07/security-releases/"],"products":["canonical:ubuntu_linux","debian:debian_linux","djangoproject:django","fedoraproject:fedora","redhat:satellite"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-44420","score":0.02421,"percentile":0.8418,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-v6rh-hp5x-86rv","url":"https://osv.dev/vulnerability/GHSA-v6rh-hp5x-86rv","summary":"Potential bypass of an upstream access control based on URL paths in Django","modified":"2024-11-19T05:35:04.095106Z","packages":[{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=2.2a1 <2.2.25"],"fixed":["2.2.25"]},{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=3.0a1 <3.1.14"],"fixed":["3.1.14"]},{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=3.2a1 <3.2.10"],"fixed":["3.2.10"]}]},{"id":"PYSEC-2021-439","url":"https://osv.dev/vulnerability/PYSEC-2021-439","summary":"","modified":"2023-12-06T01:01:41.266810Z","packages":[{"ecosystem":"PyPI","name":"django","purl":"pkg:pypi/django","ranges":[">=2.2 <2.2.25",">=3.1 <3.1.14",">=3.2 <3.2.10"],"fixed":["2.2.25","3.1.14","3.2.10"]}]}],"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."]}