CVE-2016-4972: Openstack Mitaka-Murano

Critical severity, CVSS 9.8. EPSS: 3.2% chance of exploitation in the next 30 days.

OpenStack Murano before 1.0.3 (liberty) and 2.x before 2.0.1 (mitaka), Murano-dashboard before 1.0.3 (liberty) and 2.x before 2.0.1 (mitaka), and python-muranoclient before 0.7.3 (liberty) and 0.8.x before 0.8.5 (mitaka) improperly use loaders inherited from yaml.Loader when parsing MuranoPL and UI files, which allows remote attackers to create arbitrary Python objects and execute arbitrary code via crafted extended YAML tags in UI definitions in packages.

Affected products

• Openstack Mitaka-Murano: up to and including 2.0.0
• Openstack Murano: up to and including 1.0.2
• Openstack Murano-Dashboard: up to and including 1.0.2
• Openstack Python-Muranoclient: up to and including 0.7.2

Published 2016-09-26. Last modified 2026-06-17.