CVE-2015-7713: Openstack Nova

Medium severity, CVSS 5.0. EPSS: 3.7% chance of exploitation in the next 30 days.

OpenStack Compute (Nova) before 2014.2.4 (juno) and 2015.1.x before 2015.1.2 (kilo) do not properly apply security group changes, which allows remote attackers to bypass intended restriction by leveraging an instance that was running when the change was made.

Affected products

• Openstack Nova: from 2014.2, before 2014.2.4 (fixed in 2014.2.4); from 2015.1.0, before 2015.1.2 (fixed in 2015.1.2)

Published 2015-10-29. Last modified 2026-06-17.