Django 5.2.14 release notesLink to this heading#

CVE-2026-5766: Potential denial-of-service vulnerability in ASGI requests via file upload limit bypassLink to this heading#

ASGI requests with a missing or understated Content-Length header could bypass the FILE_UPLOAD_MAX_MEMORY_SIZE limit, potentially loading large files into memory and causing service degradation.

As a reminder, Django expects a limit to be configured at the web server level rather than solely relying on FILE_UPLOAD_MAX_MEMORY_SIZE.

This issue has severity “low” according to the Django security policy.

CVE-2026-35192: Session fixation via public cached pages and SESSION_SAVE_EVERY_REQUESTLink to this heading#

Response headers did not vary on cookies if a session was not modified, but SESSION_SAVE_EVERY_REQUEST was True. A remote attacker could steal a user’s session after that user visits a cached public page.

This issue has severity “low” according to the Django security policy.

CVE-2026-6907: Potential exposure of private data due to incorrect handling of Vary: * in UpdateCacheMiddlewareLink to this heading#

Previously, UpdateCacheMiddleware would erroneously cache requests where the Vary header contained an asterisk ('*'). This could lead to private data being stored and served.

This issue has severity “low” according to the Django security policy.