Django Uses Cache Containing Sensitive Information
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 thanks Ahmad Sadeddin for reporting this issue.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-6907US | medium5.3 | — | ||
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… | ||||
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references
External citations — patches, advisories, analysis.
- https://docs.djangoproject.com/en/dev/releases/securityWEB
- https://github.com/django/djangoPACKAGE
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-55.yamlWEB
- https://groups.google.com/g/django-announceWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-6907ADVISORY
- https://www.djangoproject.com/weblog/2026/may/05/security-releasesWEB
scry
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