Vulnerability advisory

GHSA-5hrc-gvxj-w55p

Django Uses Cache Containing Sensitive Information

Published May 5, 2026Updated Sep 10, 2026OSV record ↗

Also known as BIT-django-2026-6907CVE-2026-6907PYSEC-2026-55

Severity

CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVSS 4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Affected versions

django PyPI

All django advisories →

Affected	Fixed in
`6.0` to before 6.0.5	`6.0.5`Advisories →
Also listed as affected (5) `6.0` `6.0.1` `6.0.2` `6.0.3` `6.0.4`
`5.2` to before 5.2.14	`5.2.14`Advisories →
Also listed as affected (14) `5.2` `5.2.1` `5.2.10` `5.2.11` `5.2.12` `5.2.13` `5.2.2` `5.2.3` `5.2.4` `5.2.5` `5.2.6` `5.2.7` `5.2.8` `5.2.9`

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 thanks Ahmad Sadeddin for reporting this issue.

GHSA-5hrc-gvxj-w55p

Affected versions

django PyPI

Description

References