### [CVE-2016-10539](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10539) ![](https://img.shields.io/static/v1?label=Product&message=negotiator%20node%20module&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Vulnerability&message=Denial%20of%20Service%20(CWE-400)&color=brighgreen) ### Description negotiator is an HTTP content negotiator for Node.js and is used by many modules and frameworks including Express and Koa. The header for "Accept-Language", when parsed by negotiator 0.6.0 and earlier is vulnerable to Regular Expression Denial of Service via a specially crafted string. ### POC #### Reference No PoCs from references. #### Github - https://github.com/ARPSyndicate/cvemon