VerneMQ Release is out


It’s a patch release with just 2 cumulative fixes. The new WebSocket setting prevents infinite incoming frames in the Cowboy WebSocket implementation. Going over that configured limit in frame size will disconnect misbehaving WebSocket clients.

  • Add max_ws_frame_size setting to limit incoming WebSocket stream.
  • Fix bug in webhooks metrics that crashed Prometheus endpoint. (

Enjoy your fixed MQTT broker! :slight_smile:

Note that using the binary packages (.deb/.rpm/.Docker) commercially requires a paid subscription. Compiling/building VerneMQ yourself is free. Thank you for supporting open-source software!