Security advisory

{
  "id": "30695ef123d47c4a214c711663fb3508159f4c6584fad8abd9936a6a9b6be549",
  "url": "https://osv.dev/vulnerability/CVE-2021-44420",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-44420",
    "summary": "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.",
    "evidence": "osv:CVE-2021-44420",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-44420",
      "aliases": [
        "BIT-django-2021-44420",
        "CVE-2021-44420",
        "GHSA-v6rh-hp5x-86rv",
        "PYSEC-2021-439"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/django/django",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2a62cdcfec85938f40abb2e9e6a9ff497e02afe8"
                },
                {
                  "fixed": "79d8dcefb2739176839fa76f8780aca5aa9b7101"
                },
                {
                  "introduced": "0b8a0296bfd30748f08021834e95cdae241686e8"
                },
                {
                  "fixed": "840bebf1eef1c2a373158262cdfec611dc535658"
                },
                {
                  "introduced": "3591e1c1acbd7c13174275367c3fdf012cb0413b"
                },
                {
                  "fixed": "0153a63a674937e4a56d9d5e4ca2d629b011fbde"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.2"
                      },
                      {
                        "fixed": "2.2.25"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.1"
                      },
                      {
                        "fixed": "3.1.14"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.2"
                      },
                      {
                        "fixed": "3.2.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44420.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:55.615100326Z",
      "provider": "osv",
      "references": [
        "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://docs.djangoproject.com/en/3.2/releases/security/",
        "https://www.djangoproject.com/weblog/2021/dec/07/security-releases/",
        "https://www.openwall.com/lists/oss-security/2021/12/07/1"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "20.04"
                  },
                  {
                    "last_affected": "20.04"
                  },
                  {
                    "introduced": "21.04"
                  },
                  {
                    "last_affected": "21.04"
                  },
                  {
                    "introduced": "21.10"
                  },
                  {
                    "last_affected": "21.10"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  },
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "35"
                  },
                  {
                    "last_affected": "35"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:redhat:satellite:6.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:satellite",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "6.0"
                  },
                  {
                    "last_affected": "6.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-44420",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438460,
  "published_at": "2021-12-08T00:15:07.757+00:00"
}