Vulnerability in djangoproject Django

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund6 Oct 2026WID-SEC-2026-3780

  Django: Multiple vulnerabilities Translated from German

  Risk mediumCVE-2026-77050CVE-2026-84429CVE-2026-87975+1 more CVEs

[ References ]References

• docs.djangoproject.com/en/dev/releases/security
• github.com/django/django/commit/02a69e3791e3df23d45ea4ea7e7fc489f0eef2be
• github.com/django/django/commit/3d32ee80ae52745d686bf94d3555000ddf073267
• github.com/django/django/commit/7e878b0f8bd42260903e6a0d38996a93b0474a0b
• github.com/django/django/commit/c88b304cc2d90fc37d3bd1f5f3829706fa6c13bc
• groups.google.com/g/django-announce
• www.djangoproject.com/weblog/2026/oct/06/security-releases