A vulnerability labeled as problematic has been found in OpenStack Designate up to 20.0.1/21.0.0/22.0.1 . The impacted element is the function _handle_notify of the component mDNS Handler . Executing a manipulation can lead to improper input validation. This vulnerability appears as CVE-2026-71194 . The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.