cve/2018/CVE-2018-3722.md

### [CVE-2018-3722](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3722)
![](https://img.shields.io/static/v1?label=Product&message=merge-deep%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=Modification%20of%20Assumed-Immutable%20Data%20(MAID)%20(CWE-471)&color=brighgreen)

### Description

merge-deep node module before 3.0.1 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.

### POC

#### Reference
- https://hackerone.com/reports/310708

#### Github
- https://github.com/ossf-cve-benchmark/CVE-2018-3722