{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Django"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.2a1"
            },
            {
              "fixed": "3.2.23"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Django"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1a1"
            },
            {
              "fixed": "4.1.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Django"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2a1"
            },
            {
              "fixed": "4.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-46695"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-11-02T21:26:14Z",
    "nvd_published_at": "2023-11-02T06:15:08Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.",
  "id": "GHSA-qmf9-6jqf-j8fq",
  "modified": "2024-09-20T16:05:09Z",
  "published": "2023-11-02T06:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46695"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b"
    },
    {
      "type": "WEB",
      "url": "https://docs.djangoproject.com/en/4.2/releases/security"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/django/django"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#!forum/django-announce"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#%21forum/django-announce"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20231214-0001"
    },
    {
      "type": "WEB",
      "url": "https://www.djangoproject.com/weblog/2023/nov/01/security-releases"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Django potential denial of service vulnerability in UsernameField on Windows"
}