CVE-2026-35193
Low
Description
An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. `django.middleware.cache.UpdateCacheMiddleware` in Django does not add `Authorization` to the `Vary` response header for requests bearing that header without `Cache-Control: public`, which allows remote attackers to read private cached responses via unauthenticated requests to the same URL. 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 Shai Berger for reporting this issue.
SeverityLow
CVSS3.1
Exploit probability—
Product
Django
PublishedJun 3, 2026
First seenJun 3, 2026
Weakness typeCWE-524CWE-524
How to fix
Update
- djangoproject django5.2.15, 6.0.6 or later
- django5.2.15, 6.0.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| djangoproject django | 5.2 ≤ v < 5.2.15, 6.0 ≤ v < 6.0.6 | 5.2.15, 6.0.6 |
| djangoPyPI | 5.2.0 ≤ v < 5.2.15, 6.0.0 ≤ v < 6.0.6, 5.2 ≤ v < 5.2.15, 6.0 ≤ v < 6.0.6 | 5.2.15, 6.0.6 |
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