High severity7.5NVD Advisory· Published Nov 5, 2025· Updated Jun 17, 2026
CVE-2025-64458
CVE-2025-64458
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
djangoPyPI | >= 5.2a1, < 5.2.8 | 5.2.8 |
djangoPyPI | >= 5.0a1, < 5.1.14 | 5.1.14 |
djangoPyPI | < 4.2.26 | 4.2.26 |
Affected products
65.2+ 1 more
- (no CPE)range: 5.2
- cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*range: >=4.2,<4.2.26
- ghsa-coords4 versions
>= 5.2a1, < 5.2.8+ 3 more
- (no CPE)range: >= 5.2a1, < 5.2.8
- (no CPE)range: >= 4.2.0, < 4.2.26
- (no CPE)range: < 0
- (no CPE)range: < 0
Patches
Vulnerability mechanics
References
12- docs.djangoproject.com/en/dev/releases/security/nvdVendor Advisory
- github.com/advisories/GHSA-qw25-v68c-qjf3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-64458ghsaADVISORY
- www.djangoproject.com/weblog/2025/nov/05/security-releases/nvdVendor Advisory
- docs.djangoproject.com/en/dev/releases/securityghsaWEB
- github.com/django/django/commit/3790593781d26168e7306b5b2f8ea0309de16242ghsaWEB
- github.com/django/django/commit/4f5d904b63751dea9ffc3b0e046404a7fa5881acghsaWEB
- github.com/django/django/commit/6e13348436fccf8f22982921d6a3a3e65c956a9fghsaWEB
- github.com/django/django/commit/770eea38d7a0e9ba9455140b5a9a9e33618226a7ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2025-107.yamlghsaWEB
- groups.google.com/g/django-announcenvdMailing ListWEB
- www.djangoproject.com/weblog/2025/nov/05/security-releasesghsaWEB
News mentions
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