Logstash 8.17.6, 8.18.1, and 9.0.1 Security Update (ESA-2025-08)

Logstash Improper Certificate Validation in TCP output ESA-2025-08 Improper certificate validation in Logstash's TCP output could lead to a man-in-the-middle MitM attack in “client” mode, as hostname verification in TCP output was not being performed when the sslverificationmode = full was set...