# MAL-2026-11072: Malicious code in wsh4_edu (npm)


- **Type:** Malicious package
- **Package:** `wsh4_edu` (npm)
- **Published:** 25 Jul 2026

## What is MAL-2026-11072?

MAL-2026-11072 is a malicious package in wsh4_edu, published on 25 Jul 2026. 

### Official description

The package's postinstall hook runs index.js, which POSTs the installer's absolute filesystem path (via __filename with sendFullPath: true), Node.js version, platform, and architecture to a hardcoded Discord webhook at discord.com/api/webhooks/1530599209269465319/. The same beacon also fires when the module is required, since index.js is the package main. The absolute path typically embeds the local username and home directory, giving the operator of the webhook a host/identity fingerprint of every machine that installs the package. The webhook URL is split across two string literals and concatenated at call time to evade casual string scanning, and the destination is not caller-configurable. The package name and README self-describe as a typo/beacon experiment.

The OpenSSF Package Analysis project identified 'wsh4_edu' @ 1.0.0 (npm) as malicious.

It is considered malicious because:

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

## What should I do about MAL-2026-11072?

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-2026-11072 is a malicious package: wsh4_edu (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-2026-11072/ (Markdown: https://insights.sbomify.com/MAL-2026-11072/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-11072

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-11072/
Summaries are generated and may contain mistakes; the official description above is the record.