A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.
A flaw was found where the metrics API endpoints of Puppet Server and PuppetDB leaked sensitive information to the local network. Listening to these network endpoints could allow attackers the ability to exploit additional computer systems. The highest impact of this flaw is confidentiality.