Vulnerability advisory

BIT-django-2026-48588

Potential exposure of private data via cached Set-Cookie response

Published Jul 12, 2026Updated Sep 10, 2026OSV record ↗

Also known as CVE-2026-48588GHSA-3h9f-r86x-qvjxPYSEC-2026-2090

Severity

Severity not reported.

Affected versions

django Bitnami

Affected Fixed in

5.2.0 to before 5.2.16 5.2.16

6.0.0 to before 6.0.7 6.0.7

Affected	Fixed in
`5.2.0` to before 5.2.16	`5.2.16`
`6.0.0` to before 6.0.7	`6.0.7`
Severity for this package CVSS 3.x`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`

Severity for this package

CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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

Advisorydocs.djangoproject.com/en/dev/releases/security/ ↗
ARTICLEgroups.google.com/g/django-announce ↗
Webnvd.nist.gov/vuln/detail/CVE-2026-48588 ↗
Advisorywww.djangoproject.com/weblog/2026/jul/07/security-releases/ ↗