CVE-2021-4180: Openstack Tripleo Heat Templates

Medium severity, CVSS 4.3. EPSS: 0.8% chance of exploitation in the next 30 days.

An information exposure flaw in openstack-tripleo-heat-templates allows an external user to discover the internal IP or hostname. An attacker could exploit this by checking the www_authenticate_uri parameter (which is visible to all end users) in configuration files. This would give sensitive information which may aid in additional system exploitation. This flaw affects openstack-tripleo-heat-templates versions prior to 11.6.1.

Affected products

• Openstack Tripleo Heat Templates: before 11.6.1 (fixed in 11.6.1)
• Red Hat Openstack: version 13 only; version 16.1 only; version 16.2 only

Published 2022-03-23. Last modified 2026-06-17.