An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14. Response headers do not vary on cookies if a session is not modified, but `SESSION_SAVE_EVERY_REQUEST` is `True`. A remote attacker can steal a user's session after that user visits a cached public page. 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 Cantina for reporting this issue.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://docs.djangoproject.com/en/dev/releases/security/ Vendor Advisory
- https://www.djangoproject.com/weblog/2026/may/05/security-releases/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 2.3 · djangoprojectNVD modified 2026-10-26 19:10
Affected (CPE criteria) 1
cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
References 3
- https://docs.djangoproject.com/en/dev/releases/security/ Vendor Advisory
- https://groups.google.com/g/django-announce Third Party Advisory
- https://www.djangoproject.com/weblog/2026/may/05/security-releases/ Vendor Advisory