Question 1

What is the EOL Risk Score for Elasticsearch 9.4?

Accepted Answer

Elasticsearch 9.4 has an EOL Risk Score™ of 60 out of 100, placing it in the High risk band. The score is calculated from four factors: EOL Recency (0/40), Attack Surface (30/30), CISA KEV Exposure (20/20), and Extended Support Availability (10/10).

Question 2

Is Elasticsearch 9.4 still supported?

Accepted Answer

Elasticsearch 9.4 is currently supported. End of life is scheduled for a future date. Plan your migration before that date to avoid security risk.

Question 3

When does Elasticsearch 9.4 reach end of life?

Accepted Answer

The end of life date for Elasticsearch 9.4 is not yet scheduled. Check the full Elasticsearch version timeline at endoflife.ai/elasticsearch.html for the latest information.

Question 4

What are the security risks of running Elasticsearch 9.4 after end of life?

Accepted Answer

After end of life, Elasticsearch 9.4 no longer receives security patches. Any newly discovered CVEs remain unpatched indefinitely. Organizations running EOL software also face compliance violations under SOC 2, PCI DSS, HIPAA, and ISO 27001, which require use of supported software versions.