Maintainers for telnet are Guillem Jover <guillem@debian.org>.
You may want to refer to the following packages that are part of the same source: inetutils-ftp, inetutils-ftpd, inetutils-inetd, inetutils-ping, inetutils-syslogd, inetutils-talk, inetutils-talkd, inetutils-telnet, inetutils-telnetd, inetutils-tools, inetutils-traceroute, telnetd.
You might like to refer to the telnet package page, to the Package Tracking System, or to the source package src:inetutils's bug page.
If you find a bug not listed here, please report it.