# MAL-2026-11071: Malicious code in whs4_eud (npm)


- **Type:** Malicious package
- **Package:** `whs4_eud` (npm)
- **Published:** 25 Jul 2026

## What is MAL-2026-11071?

MAL-2026-11071 is a malicious package in whs4_eud, published on 25 Jul 2026. 

### Official description

whs4_eud@1.0.1 declares a postinstall lifecycle script (`node index.js`) that fires unconditionally on `npm install`. On execution, index.js POSTs installer-side host information — the absolute path of the install location (which embeds the user's home directory), Node.js version, and platform/architecture — to a hardcoded Discord webhook under discord.com/api/webhooks/1530599209269465319/. The webhook URL is assembled by concatenating two string literals at runtime rather than appearing as a single literal, a light obfuscation of the exfiltration destination. The package name and layout are consistent with a dependency-confusion / typosquat beacon whose only functional behavior is to notify the author when an install occurs and to disclose where.

The OpenSSF Package Analysis project identified 'whs4_eud' @ 1.0.1 (npm) as malicious.

It is considered malicious because:

- The package communicates with a domain associated with malicious activity.

## What should I do about MAL-2026-11071?

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-2026-11071 is a malicious package: whs4_eud (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-2026-11071/ (Markdown: https://insights.sbomify.com/MAL-2026-11071/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-11071

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-11071/
Summaries are generated and may contain mistakes; the official description above is the record.