### [CVE-2021-33609](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33609)
![](https://img.shields.io/static/v1?label=Product&message=Vaadin&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=vaadin-server&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=8.0.0%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=CWE-400%20Uncontrolled%20Resource%20Consumption&color=brightgreen)

### Description

Missing check in DataCommunicator class in com.vaadin:vaadin-server versions 8.0.0 through 8.14.0 (Vaadin 8.0.0 through 8.14.0) allows authenticated network attacker to cause heap exhaustion by requesting too many rows of data.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Dzmitry-Basiachenka/dist-foreign-aliakh