BIT-django-2025-27556
Record from OSV · Published September 25, 2025
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| django | Bitnami | 5.1.8, 5.0.14 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Bitnami | django | 5.0.0, 5.1.0 |
Timeline
- Sep 25, 2025 CVE Published
- Oct 6, 2025 CVE Updated
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln BIT-django-2025-27556
vulnetix vdb fixes BIT-django-2025-27556
Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/BIT-django-2025-27556/fixes/registry"
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