# MAL-2026-13846: Malicious code in yangming8 (npm)


- **Type:** Malicious package
- **Package:** `yangming8` (npm)
- **Published:** 12 Aug 2026
- **Also known as:** GHSA-f3hv-h6vj-6j6r

## What is MAL-2026-13846?

MAL-2026-13846 is a malicious package in yangming8, published on 12 Aug 2026. 

### Official description

The tarball's only shipped file is index.html, declared as the package's `main`. There are no lifecycle scripts, no JavaScript entry point, no dependencies, and no library surface — installing or `require()`-ing the package does not execute the payload on the installer's machine. The HTML presents a fake Cloudflare 'Just a moment...' verification page and, after a 1-second setTimeout, runs obfuscator.io-style JavaScript that reconstructs a destination URL from split string literals ('gin.microc' + 'loud.homes' + '/') and calls window.location.replace on it, forwarding the original query string. The destination is a lookalike domain at login.microcloud.homes (impersonating MicroCloud). The package appears to exist solely to host the phishing lander for retrieval via npm CDN mirrors (unpkg/jsdelivr), abusing the registry as static hosting for a browser-side credential-phishing page. Because the harm targets end users who load the HTML in a browser via a CDN URL — not developers who `npm install` this package — the installer-side risk is minimal, but the abusive distribution warrants registry takedown.

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-2026-13846?

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-2026-13846 is a malicious package: yangming8 (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-2026-13846/ (Markdown: https://insights.sbomify.com/MAL-2026-13846/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-13846

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-13846/
Summaries are generated and may contain mistakes; the official description above is the record.