Security advisory

{
  "id": "5c0c555fa874db14db17851e7b747db61aee3da4d8b0699127b9eb4e38c436a8",
  "url": "https://osv.dev/vulnerability/CVE-2020-15225",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-15225",
    "summary": "django-filter is a generic system for filtering Django QuerySets based on user selections. In django-filter before version 2.4.0, automatically generated `NumberFilter` instances, whose value was later converted to an integer, were subject to potential DoS from maliciously input using exponential format with sufficiently large exponents. Version 2.4.0+ applies a `MaxValueValidator` with a a default `limit_value` of 1e50 to the form field used by `NumberFilter` instances. In addition, `NumberFilter` implements the new `get_max_validator()` which should return a configured validator instance to customise the limit, or else `None` to disable the additional validation. Users may manually apply an equivalent validator if they are not able to upgrade.",
    "evidence": "osv:CVE-2020-15225",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-15225",
      "aliases": [
        "CVE-2020-15225",
        "GHSA-x7gm-rfgv-w973",
        "PYSEC-2021-64"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/carltongibson/django-filter",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "78210722d920f803a8142e48969bc37f0f8324ed"
                },
                {
                  "fixed": "340cf7a23a2b3dcd7183f6a0d6c383e85b130d2b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:django-filter_project:django-filter:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "340cf7a23a2b3dcd7183f6a0d6c383e85b130d2b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "78210722d920f803a8142e48969bc37f0f8324ed"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.4.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.3.0",
            "2.2.0",
            "2.1.0",
            "2.0.0",
            "1.1.0",
            "1.0.4",
            "1.0.2",
            "1.0.1",
            "1.0.0",
            "0.15.3",
            "0.15.2",
            "0.15.1",
            "0.15.0",
            "0.14.0",
            "v0.13",
            "0.12.0",
            "0.11.0",
            "v0.10.0",
            "0.9.1",
            "0.9.0",
            "v0.8",
            "v0.7",
            "v0.6",
            "v0.6a1",
            "0.5.4",
            "0.5.3",
            "0.5.2",
            "0.5.1",
            "0.5.0",
            "0.2.0",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15225.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:54.052442709Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPHENTRHRAYFXYPPBT7JRHZRWILRY44S/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FAT2ZAEF6DM3VFSOHKB7X3ASSHGQHJAK/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVJ7AYU6FUSU3F653YCGW5LFD3IULRSX/",
        "https://github.com/carltongibson/django-filter/releases/tag/2.4.0",
        "https://github.com/carltongibson/django-filter/security/advisories/GHSA-x7gm-rfgv-w973",
        "https://security.netapp.com/advisory/ntap-20210604-0010/",
        "https://github.com/carltongibson/django-filter/commit/340cf7a23a2b3dcd7183f6a0d6c383e85b130d2b",
        "https://pypi.org/project/django-filter/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "34"
                  },
                  {
                    "last_affected": "34"
                  },
                  {
                    "introduced": "35"
                  },
                  {
                    "last_affected": "35"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-15225",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383103,
  "published_at": "2021-04-29T21:15:08.49+00:00"
}