`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.
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Tue, 04 Aug 2026 20:45:00 +0000
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Djangoproject
Djangoproject django |
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Djangoproject
Djangoproject django |
Tue, 04 Aug 2026 18:30:00 +0000
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Tue, 04 Aug 2026 16:30:00 +0000
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| Description | 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. | |
| Title | Potential denial-of-service vulnerability in check_for_language() | |
| Weaknesses | CWE-789 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: DSF
Published:
Updated: 2026-08-04T17:21:43.493Z
Reserved: 2026-07-09T19:29:06.768Z
Link: CVE-2026-15337
Updated: 2026-08-04T17:21:37.463Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-08-04T20:30:04Z