cve/2019/CVE-2019-19507.md

### [CVE-2019-19507](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19507)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

In jpv (aka Json Pattern Validator) before 2.1.1, compareCommon() can be bypassed because certain internal attributes can be overwritten via a conflicting name, as demonstrated by 'constructor': {'name':'Array'}. This affects validate(). Hence, a crafted payload can overwrite this builtin attribute to manipulate the type detection result.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ossf-cve-benchmark/CVE-2019-19507