@greenlake/mfe-login-url

Details

**Severity:** Critical

**Affected versions:** `= 2.0.0`

@greenlake/mfe-login-url is a dependency-confusion package: it is described as a "Compatibility shim", uses inflated version numbers, and its README calls it an "authorized dependency-confusion test". Each listed version (2.0.0, 1.0.0, 3.0.0) has a postinstall script that runs `node beacon.cjs` on npm install, and index.js calls the same code when the package is imported; it POSTs the hostname, install path and current working directory over plain HTTP to `http://185.158.107.175:8787/_ah/dc`, and index.js exports a Proxy that returns no-op functions so builds importing the real package keep running. The npm account wiseke published 14 such packages under the @greenlake, @sxm-web, @drone-js-ext and @ppa-web-components scopes between 2026-10-23 21:23 and 2026-10-25 14:28 UTC; index.js is byte-identical to that of ph-common (MAL-2026-1809), which sends to the same endpoint.

---

Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/38576efe4884e97a0598f23da7c6da0343b22df4/osv/malicious/npm/@greenlake/mfe-login-url/MAL-2026-18318.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/38576efe4884e97a0598f23da7c6da0343b22df4/osv/malicious/npm/@greenlake/mfe-login-url/MAL-2026-18318.json
- https://www.npmjs.com/package/@greenlake/mfe-login-url
- https://github.com/ossf/malicious-packages/blob/08e0f74bcc2cd2cc1e6e63ca1fce6f45f6e74e1b/osv/malicious/npm/@greenlake/mfe-login-url/MAL-2026-18318.json
- https://www.npmjs.com/package/@greenlake/mfe-login-url/v/1.0.0
- https://www.npmjs.com/package/@greenlake/mfe-login-url/v/2.0.0
- https://www.npmjs.com/package/@greenlake/mfe-login-url/v/3.0.0
- https://github.com/advisories/GHSA-968q-w3j5-w6rq

Compromised versions (1)

• = 2.0.0

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