### [CVE-2020-1920](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1920)
![](https://img.shields.io/static/v1?label=Product&message=react-native&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=!%3E%3D%200.64.1%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-1333%3A%20Inefficient%20Regular%20Expression%20Complexity&color=brighgreen)

### Description

A regular expression denial of service (ReDoS) vulnerability in the validateBaseUrl function can cause the application to use excessive resources, become unresponsive, or crash. This was introduced in react-native version 0.59.0 and fixed in version 0.64.1.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/Live-Hack-CVE/CVE-2020-1920
- https://github.com/ZephrFish/AutoHoneyPoC
- https://github.com/engn33r/awesome-redos-security