Security vulnerabilities and automated fixes for high severity issues
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A high-severity vulnerability was discovered in an NFS utilities configuration where rpcbind (port 111) accepted RPC service registrations without any authentication, allowing any network-accessible attacker to register malicious services under legitimate RPC program numbers and redirect NFS clients. The fix adds critical security documentation and network isolation guidance, ensuring operators understand that rpcbind must be protected by host-level firewalling or Kubernetes network policies to