cve/2021/CVE-2021-22959.md

### [CVE-2021-22959](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22959)
![](https://img.shields.io/static/v1?label=Product&message=https%3A%2F%2Fgithub.com%2Fnodejs%2Fllhttp&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=HTTP%20Request%20Smuggling%20(CWE-444)&color=brighgreen)

### Description

The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6.

### POC

#### Reference
- https://www.oracle.com/security-alerts/cpujan2022.html

#### Github
No PoCs found on GitHub currently.