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.
Metrics
Affected Vendors & Products
References
History
Fri, 03 Oct 2025 15:45:00 +0000
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| First Time appeared |
Microsoft
Microsoft windows |
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| CPEs | cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* |
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| Vendors & Products |
Microsoft
Microsoft windows |
Thu, 03 Apr 2025 02:00:00 +0000
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| Title | django: Django DoS Unicode Attack | |
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| Metrics |
threat_severity
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threat_severity
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Wed, 02 Apr 2025 22:45:00 +0000
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Wed, 02 Apr 2025 22:15:00 +0000
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ssvc
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Wed, 02 Apr 2025 13:00:00 +0000
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| Description | 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. | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: mitre
Published: 2025-04-02T00:00:00.000Z
Updated: 2025-04-02T22:03:22.423Z
Reserved: 2025-03-02T00:00:00.000Z
Link: CVE-2025-27556
Updated: 2025-04-02T22:03:22.423Z
Status : Analyzed
Published: 2025-04-02T13:15:44.373
Modified: 2025-10-03T15:34:09.950
Link: CVE-2025-27556