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CVE PROGRAM SOURCE RECORD2.3 Low

CVE-2026-6907

Potential exposure of private data due to incorrect handling of Vary: * in UpdateCacheMiddleware

Description

An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14. `django.middleware.cache.UpdateCacheMiddleware` erroneously caches requests where the `Vary` header contained an asterisk (`'*'`). This can lead to private data being stored and served. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Ahmad Sadeddin for reporting this issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

djangoproject Django

Default version status: unaffected

  • 6.0 to < 6.0.5affected
  • 6.0.5unaffected
  • 5.2 to < 5.2.14affected
  • 5.2.14unaffected

References