cve/2020/CVE-2020-7768.md

### [CVE-2020-7768](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7768)
![](https://img.shields.io/static/v1?label=Product&message=%40grpc%2Fgrpc-js&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=grpc&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%201.1.8%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%201.24.4%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Prototype%20Pollution&color=brighgreen)

### Description

The package grpc before 1.24.4; the package @grpc/grpc-js before 1.1.8 are vulnerable to Prototype Pollution via loadPackageDefinition.

### POC

#### Reference
- https://github.com/grpc/grpc-node/pull/1606
- https://github.com/grpc/grpc-node/pull/1606
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038819
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038819
- https://snyk.io/vuln/SNYK-JS-GRPC-598671
- https://snyk.io/vuln/SNYK-JS-GRPC-598671
- https://snyk.io/vuln/SNYK-JS-GRPCGRPCJS-1038818
- https://snyk.io/vuln/SNYK-JS-GRPCGRPCJS-1038818

#### Github
- https://github.com/Live-Hack-CVE/CVE-2020-7768