ghsa-wqfg-m96j-85vm
Vulnerability from github
Published
2025-04-02 15:31
Modified
2025-04-09 20:02
Severity ?
Summary
Django Potential Denial of Service (DoS) on Windows
Details
An issue was discovered in Django 5.1 before 5.1.8 and 5.0 before 5.0.14. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.views.LoginView, django.contrib.auth.views.LogoutView, and django.views.i18n.set_language are subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "5.0"
},
{
"fixed": "5.0.14"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "5.1"
},
{
"fixed": "5.1.8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-27556"
],
"database_specific": {
"cwe_ids": [
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2025-04-02T20:11:40Z",
"nvd_published_at": "2025-04-02T13:15:44Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in Django 5.1 before 5.1.8 and 5.0 before 5.0.14. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.views.LoginView, django.contrib.auth.views.LogoutView, and django.views.i18n.set_language are subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters.",
"id": "GHSA-wqfg-m96j-85vm",
"modified": "2025-04-09T20:02:06Z",
"published": "2025-04-02T15:31:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27556"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/2cb311f7b069723027fb5def4044d1816d7d2afd"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/39e2297210d9d2938c75fc911d45f0e863dc4821"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/8c6871b097b6c49d2a782c0d80d908bcbe2116f1"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/edc2716d01a6fdd84b173c02031695231bcee1f8"
},
{
"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-2025-14.yaml"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/django-announce"
},
{
"type": "WEB",
"url": "https://www.djangoproject.com/weblog/2025/apr/02/security-releases"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/02/2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "Django Potential Denial of Service (DoS) on Windows "
}
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.