CVE-2026-15337
Severity CVSS v4.0:
MEDIUM
Type:
Unavailable / Other
Publication date:
04/08/2026
Last modified:
18/08/2026
Description
An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8.<br />
`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.<br />
Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.<br />
Django would like to thank Jaeyoung Jang for reporting this issue.
Impact
Base Score 4.0
6.90
Severity 4.0
MEDIUM
Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* | 5.2.17 (excluding) | |
| cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* | 6.0 (including) | 6.0.8 (excluding) |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://docs.djangoproject.com/en/dev/releases/security/
- https://github.com/django/django/commit/224dbc832586ad5cfb0237c2ff30d14baeaddc6f
- https://github.com/django/django/commit/27137e655e442e81095f1f8f77ff3870d9fdf169
- https://github.com/django/django/commit/5b3523d29be25948e1dd90b3863a002f00fc865f
- https://github.com/django/django/commit/c72a5dbb64d0777f3f471f1be94e8b2ca91e0959
- https://groups.google.com/g/django-announce
- https://www.djangoproject.com/weblog/2026/aug/04/security-releases/