If remote logging is not used, the worker (in the case of CeleryExecutor) or the scheduler (in the case of LocalExecutor) runs a Flask logging server and is listening on a specific port and also binds on 0.0.0.0 by default. This logging server had no authentication and allows reading log files of DAG jobs. This issue affects Apache Airflow < 2.1.2.
{ "nvd_published_at": "2021-08-16T08:15:00Z", "cwe_ids": [ "CWE-306", "CWE-862" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2021-08-26T15:44:06Z" }