IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Logstash 6.8.15 Release Notes
editLogstash 6.8.15 Release Notes
editSecurity update
editCertificate verification with internal monitoring. We fixed a bug in the monitoring pipeline that caused it to pass monitoring data to Elasticsearch with certificate verification disabled. Logstash internal monitoring had been sending monitoring metadata (such as pipeline throughput metrics) to Elasticsearch without verifying the recipient. #12749
For information: CVE-2021-22138.