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GHSA-QW25-V68C-QJF3

Vulnerability from github – Published: 2025-11-05 15:31 – Updated: 2026-06-05 14:33
VLAI
Summary
Django has a denial-of-service vulnerability in HttpResponseRedirect and HttpResponsePermanentRedirect on Windows
Details

An issue was discovered in 5.1 before 5.1.14, 4.2 before 4.2.26, and 5.2 before 5.2.8. NFKC normalization in Python is slow on Windows. As a consequence, django.http.HttpResponseRedirect, django.http.HttpResponsePermanentRedirect, and the shortcut django.shortcuts.redirect were subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Seokchan Yoon for reporting this issue.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "django"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.2a1"
            },
            {
              "fixed": "5.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "django"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0a1"
            },
            {
              "fixed": "5.1.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "django"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.26"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-64458"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-407"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-05T19:55:37Z",
    "nvd_published_at": "2025-11-05T15:15:40Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in 5.1 before 5.1.14, 4.2 before 4.2.26, and 5.2 before 5.2.8.\nNFKC normalization in Python is slow on Windows. As a consequence, `django.http.HttpResponseRedirect`, `django.http.HttpResponsePermanentRedirect`, and the shortcut `django.shortcuts.redirect`  were subject to a potential  denial-of-service attack via certain inputs with a very large number of Unicode 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.",
  "id": "GHSA-qw25-v68c-qjf3",
  "modified": "2026-06-05T14:33:43Z",
  "published": "2025-11-05T15:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64458"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/django/commit/3790593781d26168e7306b5b2f8ea0309de16242"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/django/commit/4f5d904b63751dea9ffc3b0e046404a7fa5881ac"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/django/commit/6e13348436fccf8f22982921d6a3a3e65c956a9f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/django/commit/770eea38d7a0e9ba9455140b5a9a9e33618226a7"
    },
    {
      "type": "WEB",
      "url": "https://docs.djangoproject.com/en/dev/releases/security"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/django/django"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2025-107.yaml"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/django-announce"
    },
    {
      "type": "WEB",
      "url": "https://www.djangoproject.com/weblog/2025/nov/05/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"
    }
  ],
  "summary": "Django has a denial-of-service vulnerability in HttpResponseRedirect and HttpResponsePermanentRedirect on Windows"
}



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