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Elasticsearch version 6.8.21

IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.

A high severity vulnerability (CVE-2021-44228) for Apache Log4j 2 versions 2.0 to 2.14 was disclosed publicly on the project’s GitHub on December 9, 2021.

For information about affected Elasticsearch versions and mitigation steps, see our related security announcement.

Infra/Logging