# MAL-2026-6084: Malicious code in @array-util/nodepull (npm)


- **Type:** Malicious package
- **Package:** `@array-util/nodepull` (npm)
- **Published:** 17 Jun 2026
- **Also known as:** GHSA-qhxp-5mv2-773f

## What is MAL-2026-6084?

MAL-2026-6084 is a malicious package in @array-util/nodepull, published on 17 Jun 2026. 

### Official description

@array-util/nodepull@1.1.1 ships a single 19 KB obfuscated index.js as its main entry. On require()/import, the IIFE silences process error handlers via process.on('uncaughtException',...) and process.on('unhandledRejection',...), builds a URL by chained string.replace() calls to reassemble dotted host/path tokens, loads os/fs/path/child_process plus an HTTP client, downloads a remote resource, writes the response body to path.join(os.tmpdir(), <name>) with flag 'w+', and executes the dropped file via child_process.exec with {windowsHide: true, cwd: process.cwd()}. The string array, decoder (custom-base64 + RC4 via function c(b,d)), and control-flow flattening (obfuscator.io output, ~814 transforms per webcrack) conceal the URL, dropped filename, and exec target so URL/IP pattern scanners cannot read them. Package metadata is hollow (empty description, empty author, ISC license, no documented API; README only shows an install line and a bare require()) — there is no legitimate functionality, only the dropper. Any developer or build system that installs and require()s this package fetches and executes attacker-controlled code under the installer's UID with errors silenced.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

## What should I do about MAL-2026-6084?

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-2026-6084 is a malicious package: @array-util/nodepull (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-2026-6084/ (Markdown: https://insights.sbomify.com/MAL-2026-6084/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-6084

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-6084/
Summaries are generated and may contain mistakes; the official description above is the record.