cve/2021/CVE-2021-3935.md

### [CVE-2021-3935](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3935)
![](https://img.shields.io/static/v1?label=Product&message=pgbouncer&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=PgBouncer%201.16.1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-89&color=brightgreen)

### Description

When PgBouncer is configured to use "cert" authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of TLS certificate verification and encryption. This flaw affects PgBouncer versions prior to 1.16.1.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/w4zu/Debian_security