CVE-2025-64458
Potential denial-of-service vulnerability in HttpResponseRedirect and HttpResponsePermanentRedirect on Windows
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-407 |
| Vendor | djangoproject |
| Product | django |
| Published | Nov 5, 2025 |
| Last Updated | Nov 5, 2025 |
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Affected Versions
djangoproject / Django
5.2 < 5.2.8 5.1 < 5.1.14 4.2 < 4.2.26
References
Credits
🔍 Seokchan Yoon Jacob Walls Natalia Bidart