cve/2019/CVE-2019-17426.md

### [CVE-2019-17426](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17426)
![](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

Automattic Mongoose through 5.7.4 allows attackers to bypass access control (in some applications) because any query object with a _bsontype attribute is ignored. For example, adding "_bsontype":"a" can sometimes interfere with a query filter. NOTE: this CVE is about Mongoose's failure to work around this _bsontype special case that exists in older versions of the bson parser (aka the mongodb/js-bson project).

### POC

#### Reference
- https://github.com/Automattic/mongoose/issues/8222

#### Github
- https://github.com/seal-community/patches