CVE-2026-48588
Fixed in a distro release EPSS <1%CVSS 4.2
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.
Products: djangoproject django
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | django | 5.2.16 |
| PyPI | django | 6.0.7 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | authentik-2025.12 | no fix |
| Chainguard | authentik-2026.2 | 2026.2.6-r14 |
| Chainguard | authentik-2026.5 | 2026.5.6-r6 |
| Chainguard | authentik-fips-2025.12 | no fix |
| Chainguard | authentik-fips-2026.2 | 2026.2.6-r14 |
| Chainguard | authentik-fips-2026.5 | 2026.5.6-r8 |
| Chainguard | awx | no fix |
| Chainguard | openstack-horizon-2025.1 | no fix |
| Chainguard | openstack-horizon-2025.1-fips | no fix |
| Chainguard | openstack-horizon-2025.2 | no fix |
| Chainguard | openstack-horizon-2025.2-fips | no fix |
| Chainguard | openstack-horizon-2026.1 | 25.7.3_git20260806-r1 |
| Chainguard | openstack-horizon-2026.1-fips | 25.7.3_git20260806-r1 |
| Debian 12 | python-django | 3:3.2.25-0+deb12u5 |
| Debian 13 | python-django | no fix |
| Debian 14 | python-django | 3:5.2.16-1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | python-Django | 4.2.11-150600.3.62.1 |
| 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-bp160.10.1 |
| openSUSE Tumbleweed | python-Django | 5.2.16-1.1 |
| openSUSE Tumbleweed | python-Django4 | 4.2.30-4.1 |
| openSUSE Tumbleweed | python-Django5 | 5.2.16-1.1 |
| openSUSE Tumbleweed | python-Django6 | 6.0.7-1.1 |