CVE-2026-35193
Fixed in a distro release EPSS <1%CVSS 3.1
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.
Products: djangoproject django
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | django | 5.2.15 |
| PyPI | django | 6.0.6 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | authentik-2025.12 | no fix |
| Chainguard | authentik-fips-2025.12 | no fix |
| Debian 12 | python-django | no fix |
| Debian 13 | python-django | no fix |
| Debian 14 | python-django | 3:5.2.15-1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | python-Django | 4.2.11-150600.3.59.1 |
| Ubuntu 22.04 LTS | python-django | no fix |
| Ubuntu 24.04 LTS | python-django | no fix |
| Ubuntu 25.10 | python-django | no fix |
| Ubuntu 26.04 LTS | python-django | no fix |
| Ubuntu 26.10 | python-django | no fix |
| Ubuntu Pro 14.04 LTS | python-django | no fix |
| Ubuntu Pro 16.04 LTS | python-django | no fix |
| Ubuntu Pro 18.04 LTS | python-django | no fix |
| Ubuntu Pro 20.04 LTS | python-django | no fix |
| openSUSE Leap 16.0 | python-Django | 5.2.4-bp160.9.1 |
| openSUSE Tumbleweed | python-Django | 5.2.15-1.1 |
| openSUSE Tumbleweed | python-Django4 | 4.2.30-3.1 |
| openSUSE Tumbleweed | python-Django5 | 5.2.16-1.1 |
| openSUSE Tumbleweed | python-Django6 | 6.0.6-1.1 |