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Dennis Bosmans 96bef841a0 fix: prevent uncaught exceptions in core node event handlers 
Added try-catch blocks and null checks to event handlers in core nodes
to prevent uncaught exceptions from crashing the Node-RED runtime.

Changes per node:

**TCP (31-tcpin.js)**
- Wrapped all `on('data')` handlers in try-catch (TcpIn client/server, TcpGet)

**UDP (32-udp.js)**
- Wrapped `on('message')` handler in try-catch

**Exec (90-exec.js)**
- Wrapped stdout/stderr `on('data')` handlers in try-catch

**WebSocket (22-websocket.js)**
- Wrapped send() loop in handleEvent() with try-catch

**MQTT (10-mqtt.js)**
- Added null check for packet parameter in subscriptionHandler()
- Wrapped subscription handler callback in try-catch
- Added null check for mpacket.properties

Without these protections, malformed data or unexpected errors in async
event handlers could cause uncaught exceptions that crash the entire
Node-RED process.
 		2026-01-16 22:22:11 +01:00
.github Add package-lock.json for reproducible dependency chains 2026-01-07 16:15:12 +01:00
packages/node_modules fix: prevent uncaught exceptions in core node event handlers 2026-01-16 22:22:11 +01:00
scripts Bump for 4.0.5 2024-10-10 11:05:08 +01:00
test Merge branch 'master' into 5348/preserve-search-dialog-casing 2026-01-05 11:03:07 -08:00
.gitattributes Prevent github from suppressing diffs 2018-09-24 22:02:18 +01:00
.gitignore Add package-lock.json for reproducible dependency chains 2026-01-07 16:15:12 +01:00
.jshintrc fix to allow es11 for jshint check 2022-11-07 10:42:07 +09:00
API.md Update api docs header 2021-04-27 17:30:30 +01:00
CHANGELOG.md Bump for 4.1.3 2026-01-07 16:17:17 +00:00
CITATION.cff add citation file 2024-08-31 04:32:01 +02:00
CODE_OF_CONDUCT.md Add CoC.md 2016-04-07 21:51:12 +01:00
CONTRIBUTING.md Update CONTRIBUTING.md 2023-09-18 21:03:46 +01:00
Gruntfile.js Update jquery 2025-06-26 10:05:21 +01:00
LICENSE Update top-level copyright statements 2020-09-29 20:28:15 +01:00
README.md Merge pull request #5426 from dimitrieh/fix/reproducible-dependency-chain 2026-01-07 16:06:33 +00:00
SECURITY.md docs: add security escalation policy 2025-09-15 15:07:17 +02:00
jsdoc.json More api documentation updates 2019-01-28 14:40:42 +00:00
nodemon.json Fix grunt dev via better ndoemon ignore rules 2025-01-15 10:32:10 +00:00
package-lock.json Bump lock version 2026-01-07 16:17:52 +00:00
package.json Bump for 4.1.3 2026-01-07 16:17:17 +00:00

README.md

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Nodes Flows Collections

Low-code programming for event-driven applications


Node-RED Screenshot

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Quick Start

Check out https://nodered.org/docs/getting-started/ for full instructions on getting started.

  1. sudo npm install -g --unsafe-perm node-red
  2. node-red
  3. Open http://localhost:1880

[!NOTE] More documentation can be found here. For further help, or general discussion, please join the Node-RED Forum or Node-RED Slack.

Links

Development

If you want to run the latest code from git, here's how to get started:

  1. Clone the code:

     git clone https://github.com/node-red/node-red.git
 cd node-red

  2. Install the node-red dependencies

     npm ci

  3. Build the code

     npm run build

  4. Run

     npm start

Contributing

Before raising a pull-request, please read our contributing guide.

This project adheres to the Contributor Covenant 1.4. By participating, you are expected to uphold this code. Please report unacceptable behavior to any of the project's core team at team@nodered.org.

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Contributors

It is maintained by:

Copyright and License

Node-RED is a project of the OpenJS Foundation. Copyright OpenJS Foundation and other contributors, https://openjsf.org under the Apache 2.0 license.