CVE-2026-15337 (GCVE-0-2026-15337)

Vulnerability from cvelistv5 – Published: 2026-08-04 15:48 – Updated: 2026-08-04 17:21
VLAI
Title
Potential denial-of-service vulnerability in check_for_language()
Summary
An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. `django.utils.translation.check_for_language()` is subject to a potential denial-of-service attack when given many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory. Such codes reach the function through the `django.views.i18n.set_language()` view, which is not routed by default. The consumed memory is bounded, since request data is limited by the `DATA_UPLOAD_MAX_MEMORY_SIZE` setting (default 2.5 MB) and the cache holds a fixed maximum number of entries. 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 Jaeyoung Jang for reporting this issue.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
DSF
Impacted products
Vendor Product Version
djangoproject Django Affected: 6.0 , < 6.0.8 (python)
Unaffected: 6.0.8 (python)
Affected: 5.2 , < 5.2.17 (python)
Unaffected: 5.2.17 (python)
Create a notification for this product.
Date Public
2026-08-04 10:00
Credits
Jaeyoung Jang Natalia Bidart Natalia Bidart
Show details on NVD website

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