LiteSpeed Web Server (LSWS) is a commercial web server and it is a high-performance Apache drop-in replacement.
LiteSpeed has released an update for LiteSpeed 4 and LiteSpeed 5 to address OpenSSL vulnerability. They have released LiteSpeed 4.2.24 and LiteSpeed 5.0.2. It is recommended to upgrade it to latest version.
For more information, you can refer their release note from the following URL: