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GHSA-qcgg-j2x8-h9g8

Django has a potential denial-of-service vulnerability in IPv6 validation

Source: GitHub Advisory Database (reviewed) Moderate CVE-2024-56374

Packages

EcosystemPackageAffectedFixed in
PyPI Django >= 5.1, < 5.1.5 5.1.5
PyPI Django >= 5.0, < 5.0.11 5.0.11
PyPI Django >= 4.2, < 4.2.18 4.2.18
PyPI django >= 5.1, < 5.1.5 5.1.5
PyPI django >= 5.0, < 5.0.11 5.0.11
PyPI django >= 4.2, < 4.2.18 4.2.18

Details

As written in the advisory (Markdown source, shown as plain text).

An issue was discovered in Django 5.1 before 5.1.5, 5.0 before 5.0.11, and 4.2 before 4.2.18. Lack of upper-bound limit enforcement in strings passed when performing IPv6 validation could lead to a potential denial-of-service attack. The undocumented and private functions `clean_ipv6_address` and `is_valid_ipv6_address` are vulnerable, as is the `django.forms.GenericIPAddressField` form field. (The django.db.models.GenericIPAddressField model field is not affected.)

References

External links from the advisory. They lead to third-party sites.