Lynx through 2.8.9 mishandles the userinfo subcomponent of a URI, which allows remote attackers to discover cleartext credentials because they may appear in SNI data.
https://www.openwall.com/lists/oss-security/2021/08/07/11
https://www.openwall.com/lists/oss-security/2021/08/07/1
https://www.debian.org/security/2021/dsa-4953
https://lynx.invisible-island.net/current/CHANGES.html
https://lists.debian.org/debian-lts-announce/2021/08/msg00010.html
https://bugs.debian.org/991971
http://www.openwall.com/lists/oss-security/2021/08/07/9