CVE-2026-6907
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Django
PublishedMay 5, 2026
First seenMay 5, 2026
Weakness typeCWE-524CWE-524
How to fix
Update
- djangoproject django5.2.14, 6.0.5 or later
- django6.0.5, 5.2.14 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| djangoproject django | 5.2 ≤ v < 5.2.14, 6.0 ≤ v < 6.0.5 | 5.2.14, 6.0.5 |
| djangoPyPI | 6.0 ≤ v < 6.0.5, 5.2 ≤ v < 5.2.14 | 6.0.5, 5.2.14 |
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