CVE-2026-4434: Improper Certificate Validation

Improper certificate validation in the PAM propagation WinRM connections allows a network attacker to perform a man-in-the-middle attack via disabled TLS certificate verification...

Design/Logic Flaw

In Puppet Discovery prior to 1.2.0, when running Discovery against Windows hosts, WinRM connections can fall back to using basic auth over insecure channels if a HTTPS server is not available. This can expose the login credentials being used by Puppet Discovery...