2 people reported

All time, since Aug 29.

createServer callback not registered

In node:net, server.emit('connection', socket) never reaches the callback and listenerCount('connection') is 0, unlike Node.

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/bun/issues/5600/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

net.createServer callback not registered as 'connection' listener.

Is this your bug?

Where: node:net module
Versions: 1.4.0
Platforms: macOS
How bad: Breaks a normal workflow.

Original reports2, newest first

Aug 31, 2026net.Server's constructor callback is not a 'connection' listener, so server.emit('connection', socket) never reaches it#41060
Aug 29, 2026node:net: net.createServer(callback) does not register the callback as a "connection" listener#40917

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