CVEs-PoC/2021/CVE-2021-21671.md

### [CVE-2021-21671](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21671)
![](https://img.shields.io/static/v1?label=Product&message=Jenkins&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=2.266%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=LTS%202.277.1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=unspecified%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=blue)

### Description

Jenkins 2.299 and earlier, LTS 2.289.1 and earlier does not invalidate the previous session on login.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/n0-traces/cve_monitor