MAL-2026-13896 Malicious code in @years19/n8n-nodes-utils-helper-m (npm)
Malicious package
Published
MAL-2026-13896 is a malicious package: @years19/n8n-nodes-utils-helper-m (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-13896/ (Markdown: https://insights.sbomify.com/MAL-2026-13896/index.md)
- Package
- @years19/n8n-nodes-utils-helper-m
- Registry
- npm
What is MAL-2026-13896?
MAL-2026-13896 is a malicious package in @years19/n8n-nodes-utils-helper-m, published on 12 Aug 2026.
Official description
On npm install, the package's postinstall script (callback.js / index.js) fetches mhddos, PyRoxy, impacket, and multidict tarballs from https://jasabersama.id/assets/cache/.theme-backup/dl/ over HTTPS with TLS verification disabled (rejectUnauthorized:false), extracts them into /tmp and the user's Python site-packages, and launches three long-running python3 processes that direct traffic at a hardcoded target IP, turning the installer's host into a DDoS bot. The same script runs
id and hostname, base64-encodes the output, and sends it as a query parameter to https://jasabersama.id/portfolio-data.php, with the URL also carrying a c= parameter shell-composed to write attacker-supplied base64 content into /tmp/n8n_rce_result.txt. The package name suggests an n8n-nodes utility but the shipped code contains no such functionality.What should I do about MAL-2026-13896?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.