CVE-2026-15337

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://docs.djangoproject.com/en/dev/releases/security/	Patch Vendor Advisory
https://github.com/django/django/commit/224dbc832586ad5cfb0237c2ff30d14baeaddc6f	Patch
https://github.com/django/django/commit/27137e655e442e81095f1f8f77ff3870d9fdf169	Patch
https://github.com/django/django/commit/5b3523d29be25948e1dd90b3863a002f00fc865f	Patch
https://github.com/django/django/commit/c72a5dbb64d0777f3f471f1be94e8b2ca91e0959	Patch
https://groups.google.com/g/django-announce	Mailing List
https://www.djangoproject.com/weblog/2026/aug/04/security-releases/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:djangoproject:django::::::::
	cpe:2.3:a:djangoproject:django::::::::

History

No history.

Information

Published : 2026-08-04 17:16

Updated : 2026-08-18 16:30

NVD link : CVE-2026-15337

Mitre link : CVE-2026-15337

CVE.ORG link : CVE-2026-15337

JSON object : View

Products Affected

djangoproject

django

CWE

CWE-789

Memory Allocation with Excessive Size Value

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