Cached form fields In python-django
Description
An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.middleware.cache.UpdateCacheMiddleware in Django does not add Authorization to the Vary response header for requests bearing that header without Cache-Control: public, which allows remote attackers to read private cached responses via unauthenticated requests to the same URL. 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 Shai Berger for reporting this issue.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Component | Affected version | Patched versions |
|---|---|---|---|
 debian 12 | =3:3.2.19-1 || =3:3.2.19-1+deb12u1 || =3:3.2.19-1+deb12u1~bpo11+1 || =3:3.2.19-1+deb12u2 || =3:3.2.20-1 || =3:3.2.20-1.1 || =3:3.2.21-1 || =3:3.2.25-0+deb12u1 || =3:3.2.25-0+deb12u2 || =3:3.2.25-0+deb12u3 || =3:3.2.25-0+deb12u4 || =3:4.1-1 || =3:4.1.1-1 || =3:4.1.2-1 || =3:4.1.3-1 || =3:4.1.4-1 || =3:4.1.5-1 || =3:4.2-1 || =3:4.2.1-1 || =3:4.2.10-1 || =3:4.2.11-1 || =3:4.2.13-1 || =3:4.2.14-1 || =3:4.2.15-1 || =3:4.2.15-1~bpo12+1 || =3:4.2.16-1 || =3:4.2.17-1 || =3:4.2.17-2 || =3:4.2.18-1 || =3:4.2.18-1~bpo12+1 || =3:4.2.19-1 || =3:4.2.19-1~bpo12+1 || =3:4.2.2-1 || =3:4.2.20-1 || =3:4.2.20-1~bpo12+1 || =3:4.2.21-1 || =3:4.2.21-1~bpo12+1 || =3:4.2.22-1 || =3:4.2.23-1 || =3:4.2.24-1 || =3:4.2.25-1 || =3:4.2.25-2 || =3:4.2.26-1 || =3:4.2.27-1 || =3:4.2.27-2 || =3:4.2.28-1 || =3:4.2.29-1 || =3:4.2.3-1 || =3:4.2.30-1 || =3:4.2.4-1 || =3:4.2.5-1 || =3:4.2.5-2 || =3:4.2.6-1 || =3:4.2.8-1 || =3:4.2.9-1 || =3:4.2~alpha1-1 || =3:4.2~beta1-1 || =3:4.2~rc1-1 || =3:5.0-1 || =3:5.0.1-1 || =3:5.0.2-1 || =3:5.0.3-1 || =3:5.0.4-1 || =3:5.0.6-1 || =3:5.0~alpha1-1 || =3:5.0~rc1-1 || =3:5.1-1 || =3:5.1.1-1 || =3:5.1.2-1 || =3:5.1.3-1 || =3:5.1.4-1 || =3:5.1.5-1 || =3:5.1~alpha1-1 || =3:5.1~beta1-1 || =3:5.1~rc1-1 || =3:5.2-1 || =3:5.2.1-1 || =3:5.2.13-1 || =3:5.2.14-1 || =3:5.2.14-2 || =3:5.2.15-1 || =3:5.2.15-2 || =3:5.2.15-2~bpo13+1 || =3:5.2.16-1 || =3:5.2.16-1~bpo13+1 || =3:5.2.17-1 || =3:5.2.2-1 || =3:5.2.3-1 || =3:5.2.4-1 || =3:5.2.5-1 || =3:5.2.6-1 || =3:5.2~alpha1-1 || =3:5.2~beta1-1 || =3:5.2~rc1-1 || =3:6.0-1 || =3:6.0.1-1 || =3:6.0.2-1 || =3:6.0.3-1 || =3:6.0.4-1 || =3:6.0.5-1 || =3:6.0.6-1 || =3:6.0~alpha1-1 || =3:6.0~beta1-1 || =3:6.0~rc1-1 || =3:6.1-1 || =3:6.1~beta1-1 || =3:6.1~rc1-1 | - | |
debian 13 | =3:4.2.23-1 || =3:4.2.24-1 || =3:4.2.25-1 || =3:4.2.25-2 || =3:4.2.26-1 || =3:4.2.27-0+deb13u1 || =3:4.2.27-1 || =3:4.2.27-2 || =3:4.2.28-0+deb13u1 || =3:4.2.28-0+deb13u2 || =3:4.2.28-1 || =3:4.2.29-1 || =3:4.2.30-1 || =3:5.0-1 || =3:5.0.1-1 || =3:5.0.2-1 || =3:5.0.3-1 || =3:5.0.4-1 || =3:5.0.6-1 || =3:5.0~alpha1-1 || =3:5.0~rc1-1 || =3:5.1-1 || =3:5.1.1-1 || =3:5.1.2-1 || =3:5.1.3-1 || =3:5.1.4-1 || =3:5.1.5-1 || =3:5.1~alpha1-1 || =3:5.1~beta1-1 || =3:5.1~rc1-1 || =3:5.2-1 || =3:5.2.1-1 || =3:5.2.13-1 || =3:5.2.14-1 || =3:5.2.14-2 || =3:5.2.15-1 || =3:5.2.15-2 || =3:5.2.15-2~bpo13+1 || =3:5.2.16-1 || =3:5.2.16-1~bpo13+1 || =3:5.2.17-1 || =3:5.2.2-1 || =3:5.2.3-1 || =3:5.2.4-1 || =3:5.2.5-1 || =3:5.2.6-1 || =3:5.2~alpha1-1 || =3:5.2~beta1-1 || =3:5.2~rc1-1 || =3:6.0-1 || =3:6.0.1-1 || =3:6.0.2-1 || =3:6.0.3-1 || =3:6.0.4-1 || =3:6.0.5-1 || =3:6.0.6-1 || =3:6.0~alpha1-1 || =3:6.0~beta1-1 || =3:6.0~rc1-1 || =3:6.1-1 || =3:6.1~beta1-1 || =3:6.1~rc1-1 | - | |
debian 14 | =3:4.2.23-1 || =3:4.2.24-1 || =3:4.2.25-1 || =3:4.2.25-2 || =3:4.2.26-1 || =3:4.2.27-1 || =3:4.2.27-2 || =3:4.2.28-1 || =3:4.2.29-1 || =3:4.2.30-1 || =3:5.0-1 || =3:5.0.1-1 || =3:5.0.2-1 || =3:5.0.3-1 || =3:5.0.4-1 || =3:5.0.6-1 || =3:5.0~alpha1-1 || =3:5.0~rc1-1 || =3:5.1-1 || =3:5.1.1-1 || =3:5.1.2-1 || =3:5.1.3-1 || =3:5.1.4-1 || =3:5.1.5-1 || =3:5.1~alpha1-1 || =3:5.1~beta1-1 || =3:5.1~rc1-1 || =3:5.2-1 || =3:5.2.1-1 || =3:5.2.13-1 || =3:5.2.14-1 || =3:5.2.14-2 || =3:5.2.2-1 || =3:5.2.3-1 || =3:5.2.4-1 || =3:5.2.5-1 || =3:5.2.6-1 || =3:5.2~alpha1-1 || =3:5.2~beta1-1 || =3:5.2~rc1-1 || >=0 <3:5.2.15-1 | 3:5.2.15-1 | |
debian 11 | =2:2.2.24-1 || =2:2.2.25-1~deb11u1 || =2:2.2.26-1~deb11u1 || =2:2.2.28-1~deb11u1 || =2:2.2.28-1~deb11u10 || =2:2.2.28-1~deb11u11 || =2:2.2.28-1~deb11u12 || =2:2.2.28-1~deb11u13 || =2:2.2.28-1~deb11u2 || =2:2.2.28-1~deb11u3 || =2:2.2.28-1~deb11u4 || =2:2.2.28-1~deb11u5 || =2:2.2.28-1~deb11u6 || =2:2.2.28-1~deb11u7 || =2:2.2.28-1~deb11u8 || =2:2.2.28-1~deb11u9 || =2:3.0-1 || =2:3.0.1-1 || =2:3.0.2-1 || =2:3.0.4-1 || =2:3.0.5-1 || =2:3.0.6-1 || =2:3.0.7-1 || =2:3.0.7-2 || =2:3.0~alpha1-1 || =2:3.0~beta1-1 || =2:3.0~rc1-1 || =2:3.1-1 || =2:3.1-2 || =2:3.1.1-1 || =2:3.1.2-1 || =2:3.1.3-1 || =2:3.1.4-1 || =2:3.1.5-1 || =2:3.1~beta1-1 || =2:3.1~rc1-1 || =2:3.2-1 || =2:3.2.1-1 || =2:3.2.10-1 || =2:3.2.10-2 || =2:3.2.10-2~bpo11+1 || =2:3.2.10-2~bpo11+2 || =2:3.2.11-1 || =2:3.2.11-2 || =2:3.2.12-1 || =2:3.2.12-1~bpo11+1 || =2:3.2.12-2 || =2:3.2.13-1 || =2:3.2.2-1 || =2:3.2.3-1 || =2:3.2.4-1 || =2:3.2.5-1 || =2:3.2.5-2 || =2:3.2.6-1 || =2:3.2.7-1 || =2:3.2.7-2 || =2:3.2.7-3 || =2:3.2.7-4 || =2:3.2.8-1 || =2:3.2.9-1 || =2:3.2.9-2 || =2:3.2.9-2~bpo11+1 || =2:3.2~alpha1-1 || =2:3.2~alpha1-2 || =2:3.2~beta1-1 || =2:3.2~rc1-1 || =2:4.0-1 || =2:4.0.1-1 || =2:4.0.1-2 || =2:4.0.2-1 || =2:4.0.3-1 || =2:4.0.4-1 || =2:4.0.5-1 || =2:4.0.5-2 || =2:4.0.6-1 || =2:4.0~alpha1-1 || =2:4.0~beta1-1 || =2:4.0~rc1-1 || =2:4.1~alpha1-1 || =2:4.1~beta1-1 || =2:4.1~rc1-1 || =3:3.2.14-1 || =3:3.2.15-1 || =3:3.2.16-1 || =3:3.2.16-2 || =3:3.2.17-1 || =3:3.2.18-1 || =3:3.2.19-1 || =3:3.2.20-1 || =3:3.2.20-1.1 || =3:3.2.21-1 || =3:4.1-1 || =3:4.1.1-1 || =3:4.1.2-1 || =3:4.1.3-1 || =3:4.1.4-1 || =3:4.1.5-1 || =3:4.2-1 || =3:4.2.1-1 || =3:4.2.10-1 || =3:4.2.11-1 || =3:4.2.13-1 || =3:4.2.14-1 || =3:4.2.15-1 || =3:4.2.15-1~bpo12+1 || =3:4.2.16-1 || =3:4.2.17-1 || =3:4.2.17-2 || =3:4.2.18-1 || =3:4.2.18-1~bpo12+1 || =3:4.2.19-1 || =3:4.2.19-1~bpo12+1 || =3:4.2.2-1 || =3:4.2.20-1 || =3:4.2.20-1~bpo12+1 || =3:4.2.21-1 || =3:4.2.21-1~bpo12+1 || =3:4.2.22-1 || =3:4.2.23-1 || =3:4.2.24-1 || =3:4.2.25-1 || =3:4.2.25-2 || =3:4.2.26-1 || =3:4.2.27-1 || =3:4.2.27-2 || =3:4.2.28-1 || =3:4.2.29-1 || =3:4.2.3-1 || =3:4.2.30-1 || =3:4.2.4-1 || =3:4.2.5-1 || =3:4.2.5-2 || =3:4.2.6-1 || =3:4.2.8-1 || =3:4.2.9-1 || =3:4.2~alpha1-1 || =3:4.2~beta1-1 || =3:4.2~rc1-1 || =3:5.0-1 || =3:5.0.1-1 || =3:5.0.2-1 || =3:5.0.3-1 || =3:5.0.4-1 || =3:5.0.6-1 || =3:5.0~alpha1-1 || =3:5.0~rc1-1 || =3:5.1-1 || =3:5.1.1-1 || =3:5.1.2-1 || =3:5.1.3-1 || =3:5.1.4-1 || =3:5.1.5-1 || =3:5.1~alpha1-1 || =3:5.1~beta1-1 || =3:5.1~rc1-1 || =3:5.2-1 || =3:5.2.1-1 || =3:5.2.13-1 || =3:5.2.14-1 || =3:5.2.14-2 || =3:5.2.15-1 || =3:5.2.15-2 || =3:5.2.15-2~bpo13+1 || =3:5.2.16-1 || =3:5.2.16-1~bpo13+1 || =3:5.2.17-1 || =3:5.2.2-1 || =3:5.2.3-1 || =3:5.2.4-1 || =3:5.2.5-1 || =3:5.2.6-1 || =3:5.2~alpha1-1 || =3:5.2~beta1-1 || =3:5.2~rc1-1 || =3:6.0-1 || =3:6.0.1-1 || =3:6.0.2-1 || =3:6.0.3-1 || =3:6.0.4-1 || =3:6.0.5-1 || =3:6.0.6-1 || =3:6.0~alpha1-1 || =3:6.0~beta1-1 || =3:6.0~rc1-1 || =3:6.1-1 || =3:6.1~beta1-1 || =3:6.1~rc1-1 | - | |
 pypi | >=5.2.0 <5.2.15 || >=6.0.0 <6.0.6 | 5.2.15, 6.0.6 |
Aliases
References
1. https://github.com/django/django/commit/050a3dc276f9142067260e990e4d8d42d5e328632. https://github.com/django/django/commit/664652f1a2dd80d8a4cd491b4313cad915ae66693. https://github.com/django/django/commit/a2faa8e895926ac5d63f72879b5ccf671b5b4ba94. https://docs.djangoproject.com/en/dev/releases/security5. https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-197.yaml6. https://groups.google.com/g/django-announce7. https://www.djangoproject.com/weblog/2026/jun/03/security-releases
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