CVE-2013-6426: Openstack Heat

Medium severity, CVSS 4.0. EPSS: 1% chance of exploitation in the next 30 days.

The cloudformation-compatible API in OpenStack Orchestration API (Heat) before Havana 2013.2.1 and Icehouse before icehouse-2 does not properly enforce policy rules, which allows local in-instance users to bypass intended access restrictions and (1) create a stack via the CreateStack method or (2) update a stack via the UpdateStack method.

Affected products

• Openstack Heat: up to and including 2013.2

Published 2013-12-14. Last modified 2026-06-17.