# MAL-2026-13902: Malicious code in @years19/n8n-nodes-utils-helper-s (npm)


- **Type:** Malicious package
- **Package:** `@years19/n8n-nodes-utils-helper-s` (npm)
- **Published:** 12 Aug 2026

## What is MAL-2026-13902?

MAL-2026-13902 is a malicious package in @years19/n8n-nodes-utils-helper-s, published on 12 Aug 2026. 

### Official description

The package's postinstall script writes /tmp/attack.py — a Python UDP/TCP flooder targeting the hardcoded IP 103.118.252.21 on ports 80/443 for 600 seconds — and launches it in the background via nohup python3. The same code path is present in index.js, which is declared as the package `main`, so require()ing the module re-triggers the dropper even when installation runs with --ignore-scripts. Both files also collect installer host identity (`id`, `hostname`, process listing, /proc/loadavg), base64-encode the data, and send it via HTTPS GET to jasabersama.id/portfolio-data.php with TLS verification disabled (rejectUnauthorized: false). The package presents itself as an n8n utility node but contains no such functionality; its only behavior is host reconnaissance exfiltration and using the installer's machine as a DDoS bot against a third-party target.

## What should I do about MAL-2026-13902?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-13902 is a malicious package: @years19/n8n-nodes-utils-helper-s (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-2026-13902/ (Markdown: https://insights.sbomify.com/MAL-2026-13902/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13902

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13902/
Summaries are generated and may contain mistakes; the official description above is the record.