{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-25673",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-25673",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-03-03T14:28:28.601Z",
    "updatedAt": "2026-07-15T01:16:05.116Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Potential denial-of-service vulnerability in URLField via Unicode normalization on Windows",
      "summary": "An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.12, and 4.2 before 4.2.29.\n`URLField.to_python()` in Django calls `urllib.parse.urlsplit()`, which performs NFKC normalization on Windows that is disproportionately slow for certain Unicode characters, allowing a remote attacker to cause denial of service via large URL inputs containing these characters.\nEarlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.\nDjango would like to thank Seokchan Yoon for reporting this issue.",
      "affected": [
        {
          "vendor": "djangoproject",
          "product": "Django",
          "packageName": "django",
          "collectionURL": "https://pypi.org/project/Django/",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.0.3"
            },
            {
              "version": "6.0.3",
              "status": "unaffected",
              "versionType": "semver"
            },
            {
              "version": "5.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.2.12"
            },
            {
              "version": "5.2.12",
              "status": "unaffected",
              "versionType": "semver"
            },
            {
              "version": "4.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.2.29"
            },
            {
              "version": "4.2.29",
              "status": "unaffected",
              "versionType": "semver"
            }
          ]
        }
      ]
    }
  }
}