| Package | Affected versions | Patched versions |
|---|---|---|
| engine.io | ≥ 4.0.0, < 6.2.1< 3.6.1 | 6.2.13.6.1 |
| engine.io | ≥ 4.0.0, < 6.2.1< 3.6.1 | 6.2.13.6.1 |
A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.
events.js:292
throw er; // Unhandled 'error' event
^
Error: read ECONNRESET
at TCP.onStreamRead (internal/stream_base_commons.js:209:20)
Emitted 'error' event on Socket instance at:
at emitErrorNT (internal/streams/destroy.js:106:8)
at emitErrorCloseNT (internal/streams/destroy.js:74:3)
at processTicksAndRejections (internal/process/task_queues.js:80:21) {
errno: -104,
code: 'ECONNRESET',
syscall: 'read'
}
This impacts all the users of the engine.io package, including those who uses depending packages like socket.io.
A fix has been released today (2022/11/20):
| Version range | Fixed version |
|---|---|
[email protected] | 3.6.1 |
[email protected] | 6.2.1 |
For socket.io users:
| Version range | engine.io version | Needs minor update? |
|---|---|---|
[email protected] | ~6.2.0 | npm audit fix should be sufficient |
[email protected] | ~6.1.0 | Please upgrade to [email protected] |
[email protected] | ~6.0.0 | Please upgrade to [email protected] |
[email protected] | ~5.2.0 | Please upgrade to [email protected] |
[email protected] | ~5.1.1 | Please upgrade to [email protected] |
[email protected] | ~5.0.0 | Please upgrade to [email protected] |
[email protected] |
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free~4.1.0 |
Please upgrade to [email protected] (see here) |
[email protected] | ~4.0.0 | Please upgrade to [email protected] (see here) |
[email protected] | ~3.6.0 | npm audit fix should be sufficient |
[email protected] and below | ~3.5.0 | Please upgrade to [email protected] |
There is no known workaround except upgrading to a safe version.
If you have any questions or comments about this advisory:
engine.ioThanks to Jonathan Neve for the responsible disclosure.