CVE-2026-77050
mediumAn issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://docs.djangoproject.com/en/dev/releases/security/ 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- https://github.com/django/django/commit/02a69e3791e3df23d45ea4ea7e7fc489f0eef2be 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- https://github.com/django/django/commit/3d32ee80ae52745d686bf94d3555000ddf073267 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- https://github.com/django/django/commit/7e878b0f8bd42260903e6a0d38996a93b0474a0b 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- https://github.com/django/django/commit/c88b304cc2d90fc37d3bd1f5f3829706fa6c13bc 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- https://groups.google.com/g/django-announce 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
- https://www.djangoproject.com/weblog/2026/oct/06/security-releases/ 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92