Logstash prior to version 2.3.4, Elasticsearch Output plugin would log to file HTTP authorization headers which could contain sensitive information.
{ "nvd_published_at": "2017-06-16T21:29:00Z", "cwe_ids": [ "CWE-200" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2023-07-28T20:52:56Z" }