GCVE-110-OSM-2026-13424

troubleshooting is a dependency-confusion package: it is described as a "Compatibility shim", uses version numbers up to 99.0.1, and its README calls it an "authorized dependency-confusion test". Each listed version 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 xwise8887 published these 7 versions, and 6 versions of browser-metrics-plugin.contrib with the same payload, on 2026-10-07 between 00:01 and 00:07 UTC. ENTRY beacon.cjs (install-hook: node beacon.cjs) - Install Hook Executes Local JS File in package.json DESTINATION - 2 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - Network Request in beacon.cjs: "request({ hostname: u.hostname, port: u.port || (u.protocol === 'https:" - Suspicious Domain in beacon.cjs: "http://185.158.107.175" ADDITIONAL FINDINGS - Brand New Package - Very New NPM Publisher Account - Rapid Version Publishing PAYLOAD FILES beacon.cjs