CVE-2026-100701 Nodemailer 5.0.0 through 10.0.1 TLS servername Cache Confusion

Nodemailer versions 5.0.0 through 10.0.1 use a process-global DNS cache that is keyed only by the DNS host, while each cache entry also stores the caller-specific TLS servername. When two direct TLS/SMTPS transports secure: true resolve the same non-IP host with different tls.servername values, t...