CVE-2026-61704 link-preview-js DNS Rebinding SSRF Bypass / Incomplete Fix for CVE-2026-43897

Link Preview JS extracts web links information. Prior to 4.0.4, the resolveDNSHost mitigation in index.ts validates one resolved IP address but fetches the original hostname, allowing an attacker-controlled DNS server to return a public address during validation and a loopback or internal address...