GCVE-110-OSM-2026-13414

On `npm install`, the package's declared postinstall script executes index.js, which collects a host fingerprint (hostname, username, home directory, cwd, platform/arch/OS release, CPU model, memory, network interfaces including MAC/OUI, process info) and enumerates process.env for variable names matching TOKEN|SECRET|KEY|PASS|AWS_|GCP_|AZURE_|SSH|GIT|NPM|DOCKER. The collected data is transmitted via HTTPS GET to the hardcoded third-party endpoint telegrambot-aebk.onrender.com/ping. The behavior fires automatically on install without opt-in and discloses the installer's host identity and credential-variable inventory to an author-controlled destination. ENTRY index.js (install-hook: node index.js) - Install Hook Executes Local JS File in package.json DESTINATION - 2 exfil (custom-c2) (values recorded in verified_iocs) EXFIL - Data Encoding for Exfiltration in index.js: "encodeURIComponent(k) + '=' + encodeURIComponent(v" - Network Request in index.js: "https.request(" - System Information Collection in index.js: "os.userInfo()" ADDITIONAL FINDINGS - Very New NPM Publisher Account - Rapid Version Publishing PAYLOAD FILES index.js