GCVE-110-OSM-2026-12203

The package's postinstall lifecycle script (postinstall.js) executes a bash /dev/tcp reverse shell to the hardcoded remote endpoint 14.225.210.85:80, giving the operator of that host an interactive shell on the installer's machine. Execution is gated by an os.hostname() equality check against 'ubuntu-fc-uvm'; on a matching host the script retries the connection up to 5 times, and on any other host it exits silently. The hostname gate is an evasion mechanism that hides the payload from generic installers and sandboxes while enabling targeted exploitation. The behavior fires automatically on npm install via scripts.postinstall with no user interaction. The package name mimics a Strapi plugin but ships no plugin functionality consistent with the declared purpose. ENTRY postinstall.js (install-hook: node postinstall.js) - Install Hook Executes Local JS File in package.json DESTINATION - 1 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - System Information Collection in postinstall.js: "os.userInfo()" ADDITIONAL FINDINGS - Shell Command Execution in postinstall.js: "require('child_process')" PAYLOAD FILES postinstall.js