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Log4j vulnerability threat impact on Elasticsearch and Logstash versions below 5

Elastic Stack Elasticsearch

warkolm (Mark Walkom) December 19, 2021, 11:12pm 2

Those versions are EOL and unsupported, please upgrade as a matter of urgency.

Apache Log4j2 Remote Code Execution (RCE) Vulnerability - CVE-2021-44228 - ESA-2021-31 has more info.

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