Description
Open redirect vulnerability in views/auth_forms.py in OpenStack Dashboard (Horizon) Essex (2012.1) allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the next parameter to auth/login/. NOTE: this issue was originally assigned CVE-2012-3542 by mistake.
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 | horizon | 2012.1.1-4 | — |
| Debian 13 | horizon | 2012.1.1-4 | — |
| Debian 12 | horizon | 2012.1.1-4 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 1 | openstack-dashboard +2 | 2012.1.1-3.el6 | RHSA-2012:1380 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | horizon | all versions | — | PYSEC-2012-18 |
Advisories 1
- RHSA-2012:1380 Red Hat Security Advisory: python-django-horizon security update Red Hat Security Advisories (RHSA) · Aug 8, 2026
References
- openstackdashboard-next-open-redirect(78196) vdb-entry
- https://bugs.launchpad.net/horizon/+bug/1039077
- [oss-security] 20120830 [OSSA 2012-012] Horizon, Open redirect through 'next' parameter (CVE-2012-3542) mailing-list
- https://github.com/openstack/horizon/commit/35eada8a27323c0f83c400177797927aba6bc99b
- USN-1565-1 vendor-advisory
- 55329 vdb-entry
- [openstack] 20120830 Re: [OSSA 2012-012] Horizon, Open redirect through 'next' parameter (CVE-2012-3540) mailing-list
- 50480 third-party-advisory
- [oss-security] 20120830 Re: [Openstack] [OSSA 2012-012] Horizon, Open redirect through 'next' parameter (CVE-2012-3540) mailing-list
- [openstack] 20120830 [OSSA 2012-012] Horizon, Open redirect through 'next' parameter (CVE-2012-3542) mailing-list