### [CVE-2017-5636](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5636)
![](https://img.shields.io/static/v1?label=Product&message=Apache%20NiFi&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Escalation%20of%20Privilege&color=brighgreen)

### Description

In Apache NiFi before 0.7.2 and 1.x before 1.1.2 in a cluster environment, the proxy chain serialization/deserialization is vulnerable to an injection attack where a carefully crafted username could impersonate another user and gain their permissions on a replicated request to another node.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/PalindromeLabs/Java-Deserialization-CVEs