Description
The session backends in Django before 1.4.21, 1.5.x through 1.6.x, 1.7.x before 1.7.9, and 1.8.x before 1.8.3 allows remote attackers to cause a denial of service (session store consumption) via multiple requests with unique session keys.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | python-django | 1.7.9-1 | — |
| Debian 13 | python-django | 1.7.9-1 | — |
| Debian 12 | python-django | 1.7.9-1 | — |
| Debian 8 | python-django | 1.7.7-1+deb8u1 | DSA-3305-1 |
| Debian 7 | python-django | 1.4.5-1+deb7u12 | DSA-3305-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | python-django | 1.2.3-3+squeeze13 | DLA-272-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | python-django | 1.6.1-2ubuntu0.9 | USN-2671-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 6 | python-django +2 | 1.6.11-2.el7ost | RHSA-2015:1678 |
| Red Hat OpenStack 5 | python-django +2 | 1.6.11-1.el6ost | RHSA-2015:1686 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud 5 | python-Django | 1.6.11-10.2 | SUSE-SU-2015:1810-1 |
| SUSE Enterprise Storage 2 | python-Django | 1.6.11-3.1 | SUSE-SU-2016:0044-1 |
| SUSE Enterprise Storage 1.0 | python-Django | 1.6.11-8.1 | SUSE-SU-2015:1815-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | django | < 1.4.21 | 1.4.21 | GHSA-h582-2pch-3xv3 |
| PyPI | django | >= 1.5, < 1.7.9 | 1.7.9 | GHSA-h582-2pch-3xv3 |
| PyPI | django | >= 1.8, < 1.8.3 | 1.8.3 | GHSA-h582-2pch-3xv3 |
| PyPI | django | < 1.4.21 · >= 1.5, < 1.7.9 · >= 1.8, < 1.8.3 | 1.4.21, 1.7.9, 1.8.3 | PYSEC-2015-20 |
Advisories 8
- DLA-272-1 python-django - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3305-1 python-django - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2671-1 python-django vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2016:0044-1 Security update for python-Django SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1815-1 Security update for python-Django SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1810-1 Security update for python-Django SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2015:1686 Red Hat Security Advisory: python-django security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2015:1678 Red Hat Security Advisory: python-django security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- FEDORA-2015-1dd5bc998f vendor-advisory
- GLSA-201510-06 vendor-advisory
- https://www.djangoproject.com/weblog/2015/jul/08/security-releases/
- openSUSE-SU-2015:1802 vendor-advisory
- openSUSE-SU-2015:1813 vendor-advisory
- DSA-3305 vendor-advisory
- RHSA-2015:1678 vendor-advisory
- 75666 vdb-entry
- RHSA-2015:1686 vendor-advisory
- USN-2671-1 vendor-advisory
- 1032820 vdb-entry
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html