The LiteSpeed team has released a critical security update addressing a vulnerability in LiteSpeed’s QUIC and HTTP/3 Library (LSQUIC) that could result in memory leaks.

What we’ve done: RunCloud has now automatically applied the update to OpenLiteSpeed servers. Your environment should now be running OLS v1.8.4 or higher.

Action required:

• In most cases, no action is required – RunCloud will have already updated your affected server(s) automatically.
  
  
• However, since this is a security update, we strongly recommend double-checking that your OpenLiteSpeed version is 1.8.4 or higher to ensure you are protected.

For full details, see the official LiteSpeed advisory: LiteSpeed Security Update – Aug 18, 2025.