# MAL-2026-17708: Malicious code in xblaxw (npm)


- **Type:** Malicious package
- **Package:** `xblaxw` (npm)
- **Published:** 8 Oct 2026

## What is MAL-2026-17708?

MAL-2026-17708 is a malicious package in xblaxw, published on 8 Oct 2026. 

### Official description

xblaxw@1.1.0 is a stub package whose only behavior is a beacon. The package.json postinstall script runs `node beacon.cjs`, which collects host identifiers (hostname, install path, process.cwd(), process.version) and POSTs them as JSON to the hardcoded bare-IP endpoint http://185.158.107.175:8787/_ah/dc over plaintext HTTP. The same beacon is re-fired on require(): index.js exports a Proxy that returns a no-op function for any property access and calls require('./beacon.cjs').fire() on load, so the exfiltration also triggers whenever a consumer imports the package. The package description is 'Compatibility shim.' with no real functionality — the Proxy-of-noops export is consistent with a dependency-confusion / name-squat beacon designed to confirm which internal names resolve to this public package and report back installer host metadata to the operator at 185.158.107.175:8787.

## What should I do about MAL-2026-17708?

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-2026-17708 is a malicious package: xblaxw (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-2026-17708/ (Markdown: https://insights.sbomify.com/MAL-2026-17708/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-17708

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-17708/
Summaries are generated and may contain mistakes; the official description above is the record.