A flaw was discovered in Puppet Agent and Puppet Server that may result in a leak of HTTP credentials when following HTTP redirects to a different host. This is similar to CVE-2018-1000007

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by leveraging incorrect URL decoding.

For certificates that utilize the auto-renew feature in Puppet Server, a flaw exists which prevents the certificates from being revoked.

A flaw was found in Puppet, where the Puppet Agent did not verify the peer in the SSL connection before downloading to the Certificate Revocation List (CRL). The primary risk is the availability of communications to computing systems and not Puppet itself. This flaw allows an attacker to submit a phony CRL, potentially denying future automation of systems driven by Puppet.

Race condition in Puppet Server 0.2.0 allows local users to obtain sensitive information by accessing it in between package installation or upgrade and the start of the service.