6.4.2

⚠️ This release contains an important security fix ⚠️

A malicious client could send a specially crafted HTTP request, triggering an uncaught exception and killing the Node.js process:

TypeError: Cannot read properties of undefined (reading 'handlesUpgrades')
  at Server.onWebSocket (build/server.js:515:67)

Please upgrade as soon as possible.

Bug Fixes

• include error handling for Express middlewares (#674) (9395782)
• prevent crash when provided with an invalid query param (fc480b4)
• typings: make clientsCount public (#675) (bd6d471)
• uws: prevent crash when using with middlewares (8b22162)

Credits

Huge thanks to @tyilo and @cieldeville for helping!

Links

• Diff: 6.4.1...6.4.2
• Client release: -
• ws version: ~8.11.0 (no change)