# MAL-2026-17938: Malicious code in nsdhjuiwqxmhsf1 (npm)


- **Type:** Malicious package
- **Package:** `nsdhjuiwqxmhsf1` (npm)
- **Published:** 19 Oct 2026
- **Also known as:** GHSA-mrcc-xr4x-hmjf

## What is MAL-2026-17938?

MAL-2026-17938 is a malicious package in nsdhjuiwqxmhsf1, published on 19 Oct 2026. 

### Official description

The package contains no JavaScript source, no TypeScript source, and no install/require lifecycle hooks. The sole shipped file is index.html, declared as the package main, containing Cloudflare Turnstile branding and a large obfuscator.io-style IIFE (hex-named identifiers, string-array dispatcher). Because main points at HTML rather than a Node-loadable module and no lifecycle scripts are defined, installing or requiring the package does not execute code on an npm installer. The structure is consistent with using the npm registry as a static hosting/CDN channel (e.g. via unpkg or jsDelivr) to serve a Cloudflare-impersonation page to browser visitors, rather than to attack developers who install the package.

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-2026-17938?

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-2026-17938 is a malicious package: nsdhjuiwqxmhsf1 (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-2026-17938/ (Markdown: https://insights.sbomify.com/MAL-2026-17938/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-17938

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-17938/
Summaries are generated and may contain mistakes; the official description above is the record.