# MAL-2026-11130: Malicious code in array-node-utils (npm)


- **Type:** Malicious package
- **Package:** `array-node-utils` (npm)
- **Published:** 28 Jul 2026

## What is MAL-2026-11130?

MAL-2026-11130 is a malicious package in array-node-utils, published on 28 Jul 2026. 

### Official description

The package's main file index.js is a heavily obfuscated (obfuscator.io RC4+base64 string-array) module whose top-level IIFE runs on require(). It loads https, path, os, fs, child_process, and crypto; assembles a 4-octet host string via repeated.concat calls to hide the destination; issues an https GET; pipes the response through crypto.createDecipheriv (AES) with a sha256-derived key; writes the decrypted bytes to a file under os.tmpdir(); and executes that file via child_process with windowsHide and cwd set to the user's home directory. The package's declared purpose ('array-node-utils') has no relationship to the shipped code — the module contains no array-handling logic, only the fetch-decrypt-exec chain.

## What should I do about MAL-2026-11130?

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-2026-11130 is a malicious package: array-node-utils (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-2026-11130/ (Markdown: https://insights.sbomify.com/MAL-2026-11130/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-11130

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-11130/
Summaries are generated and may contain mistakes; the official description above is the record.