CVE-2026-48588

PYSEC-2026-2090 · BIT-django-2026-48588 · CVE-2026-48588 · GHSA-3h9f-r86x-qvjx

Published Jul 7, 2026 · Modified Aug 10, 2026

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Description

An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16.
UpdateCacheMiddleware and the cache_page() decorator cache responses that vary on cookies when the incoming request carries unrelated cookies, which allows remote attackers to read private data from the shared cache.
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 Chris Whyland for reporting this issue.

References

ADVISORY https://groups.google.com/g/django-announce
FIX https://docs.djangoproject.com/en/dev/releases/security/
FIX https://www.djangoproject.com/weblog/2026/jul/07/security-releases/
ADVISORY https://github.com/advisories/GHSA-3h9f-r86x-qvjx

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CVE-2026-48588

Description

References

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