Zend certified PHP/Magento developer

How to know if my ElasticSearch is vulnerable against Log4j?

I don’t have Java installed in my main Docker, but I’m using ElasticSearch v6.8.3 in another instance.

curl -XGET 'http://localhost:9200'

ElasticSearch 6 against Log4j

Am I vulnerable against Log4j even not running ElasticSearch inside of the same instance?