LOW 2.3 NVD
CVE-2026-113593
An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19. The `django.middleware.cache.UpdateCacheMiddleware` and the `djang
An issue was discovered in Django 6.1 before 6.1.3, 6.0 before 6.0.10, and 5.2 before 5.2.19.
The `django.middleware.cache.UpdateCacheMiddleware` and the `django.views.decorators.cache.cache_page()` decorator generate identical cache keys for requests that omit a header listed in the response’s `Vary` header and requests that include that header with an empty value, potentially allowing remote attackers to access private data cached for another request.
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 Andrew Gonzalez for reporting this issue.
References
- https://docs.djangoproject.com/en/dev/releases/security/
- https://github.com/django/django/commit/2006a2b068766bf332f1afcc32b7614d8e5759a2
- https://github.com/django/django/commit/55e2e009b4f3996e5c55af7b22a8c41eb826e892
- https://github.com/django/django/commit/9007fecd3633cfd90b093ebe106af564347c8aee
- https://github.com/django/django/commit/c0b7e5e4e4546e8ddc58262f1945938bb9d9ac2d
This low severity vulnerability with a CVSS score of 2.3 was published on 2026-11-03 via NVD.
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