CVE-2026-77050
Potential denial-of-service vulnerability in get_supported_language_variant()
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Description
An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18. `django.utils.translation.get_supported_language_variant()` is subject to a potential denial-of-service attack when processing many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Gleb Lizunov for reporting this issue.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://docs.djangoproject.com/en/dev/releases/security/
- https://github.com/django/django/commit/c88b304cc2d90fc37d3bd1f5f3829706fa6c13bc
- https://github.com/django/django/commit/7e878b0f8bd42260903e6a0d38996a93b0474a0b
- https://github.com/django/django/commit/3d32ee80ae52745d686bf94d3555000ddf073267
- https://github.com/django/django/commit/02a69e3791e3df23d45ea4ea7e7fc489f0eef2be
References (7)
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