PYSEC-2026-55

At a glance

Published
Updated
CVE
CVE-2026-6907
Aliases
BIT-django-2026-6907, GHSA-5hrc-gvxj-w55p
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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 packages

PackageVersions
PyPI · djangointroduced 5.2, fixed 5.2.14, introduced 6.0, fixed 6.0.5

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — PyPA Advisory Database