Preface: Node.js is popular in technology world. No matter crypto or distributed ledger platform, Docker development, REST API…etc can deploy by node.js.
Vulnerability details (CVE-2019-5737): An attacker could exploit this vulnerability when establishing an HTTP or HTTPS connection in keep-alive mode by sending headers to the targeted system over time to keep the connection open for an extended period. As a result a denial of service condition occurred. Official announcement display in below url: https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/