MalwarePublished 12 Aug 2026

@years19/n8n-nodes-utils-helper-l (npm) · Malicious Code

Affects @years19/n8n-nodes-utils-helper-lSource GCVE Database

Malicious package : remove @years19/n8n-nodes-utils-helper-l and rotate any secrets on hosts that installed it.

Data as of 12 Aug 2026, 16:26 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-13895

What to do

Remove @years19/n8n-nodes-utils-helper-l from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npm@years19/n8n-nodes-utils-helper-l	Affected =1.0.0	Fixed in–

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Description

The npm package @years19/n8n-nodes-utils-helper-l version 1.0.0 contains malicious code that executes during installation and runtime. It downloads multiple tarballs containing attack tools, disables TLS verification, extracts files into system directories, and launches background Python processes to perform network flood attacks. It also collects system information and sends it to a remote server via HTTPS GET requests. This behavior poses a risk of unauthorized remote command execution and participation in denial-of-service attacks.

Impact

This malicious package can compromise the host system by executing unauthorized network flood attacks, potentially implicating the user in denial-of-service activities. It also leaks system information to an attacker-controlled server and establishes a remote command channel, which could lead to further compromise or control of the affected system.

Defensive guidance

Users should immediately remove the @years19/n8n-nodes-utils-helper-l package version 1.0.0 from their environments and avoid installing or importing it. Verify the integrity and source of npm packages before installation. Monitor for any unexpected network activity or background Python processes spawned by npm packages. Check vendor advisories or npm security advisories for updates or removal notices regarding this package.

Summary

The @years19/n8n-nodes-utils-helper-l npm package version 1.0.0 includes a postinstall script and main entrypoint (index.js) that fetch four tarballs from a remote server with TLS verification disabled. These tarballs contain tools such as mhddos, PyRoxy, impacket, and multidict, which are extracted into /tmp and the user's Python site-packages. The package then spawns background Python 3 processes that conduct UDP/TCP/GET flood attacks against IP 103.118.252.21. Additionally, it collects the output of system commands 'id' and 'hostname', base64-encodes this data, and sends it via HTTPS GET to a remote URL with a command parameter, enabling remote command and control. The malicious payload activates both during npm install and whenever the package is imported or required.

References

npmjs.com/package/@years19/n8n-nodes-utils-helper-l/v/1.0.0 (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 12 Aug 2026, 16:26 UTC

Technical details

References

Community reviews