GO-2022-0370 Man-in-the-middle attack due to improper validation of certificate in mellium.im/xmpp

Websocket client connections are vulnerable to man-in-the-middle attacks via DNS spoofing. When looking up a WSS endpoint using a DNS TXT record, the server TLS certificate is incorrectly validated using the name of the server returned by the TXT record request, not the name of the the server bei...

Improper Validation of Certificate with Host Mismatch in mellium.im/xmpp/websocket

Impact If no TLS configuration is provided by the user, the websocket package constructs its own TLS configuration using recommended defaults. When looking up a WSS endpoint using the DNS TXT record method described in XEP-0156: Discovering Alternative XMPP Connection Methods the ServerName field...