nitro-cjs-requirer

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: amazon-inspector (b78ca7e6d900dde3d7b9a367cdc359f3ec47a8b662ff53dd9c6542edbdb00b0b)
The package is a beacon carrier with no real functionality. The declared postinstall script runs beacon.cjs, which POSTs the package name, os.hostname(), __dirname install path, process.cwd(), and node version to the hardcoded bare-IP, plain-HTTP endpoint http://185.158.107.175:8787/_ah/dc. The same fire() call is also invoked at module load from index.js, which otherwise exports a Proxy returning no-op functions for every property so the module appears to be a compatibility shim. Installer host identifiers are therefore sent unconditionally both at npm install (via the postinstall lifecycle hook) and on require(), to a bare-IP endpoint unrelated to any publisher, with no caller opt-in and no documented purpose. The shape — hollow stub module, dual install-time and require-time beacon trigger, hardcoded bare-IP over plain HTTP, host/path/cwd identifiers — is a dependency-confusion or build-pipeline reconnaissance probe.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/ff41f6680a0ebbef2268cdb5daf253d4b400cb05/osv/malicious/npm/nitro-cjs-requirer/MAL-2026-17775.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/ff41f6680a0ebbef2268cdb5daf253d4b400cb05/osv/malicious/npm/nitro-cjs-requirer/MAL-2026-17775.json
- https://www.npmjs.com/package/nitro-cjs-requirer/v/0.0.1
- https://www.npmjs.com/package/nitro-cjs-requirer/v/1.0.0
- https://www.npmjs.com/package/nitro-cjs-requirer/v/1.1.0
- https://www.npmjs.com/package/nitro-cjs-requirer/v/2.0.0
- https://www.npmjs.com/package/nitro-cjs-requirer/v/3.0.0
- https://www.npmjs.com/package/nitro-cjs-requirer/v/99.0.1
- https://github.com/advisories/GHSA-hp5p-fc9h-wfg5

Compromised versions (1)

• = 1.0.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.