From 9717d582a7b2535220224b4a079d12ee3c109687 Mon Sep 17 00:00:00 2001
From: Kristjan ESPERANTO <35647502+KristjanESPERANTO@users.noreply.github.com>
Date: Tue, 7 Apr 2026 20:53:35 +0200
Subject: [PATCH] fix: prevent crash when config is undefined in socket handler

If a module uses this.io.of() to register a custom socket.io namespace,
connections on that namespace trigger the onAny handler in setSocketIO
before config is set, causing a TypeError.

Fixes #4089
---
 js/node_helper.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/node_helper.js b/js/node_helper.js
index 8910699930..506f1d85c9 100644
--- a/js/node_helper.js
+++ b/js/node_helper.js
@@ -89,7 +89,7 @@ const NodeHelper = Class.extend({
 		io.of(this.name).on("connection", (socket) => {
 			// register catch all.
 			socket.onAny((notification, payload) => {
-				if (config.hideConfigSecrets && payload && typeof payload === "object") {
+				if (config?.hideConfigSecrets && payload && typeof payload === "object") {
 					try {
 						const payloadStr = replaceSecretPlaceholder(JSON.stringify(payload));
 						this.socketNotificationReceived(notification, JSON.parse(payloadStr));