Description
The Elasticsearch logging provider, when configured with a `host` URL that embeds credentials (for example `https://user:password@server.example.com:9200`), wrote the full host URL — including the embedded credentials — into task logs. Any user with task-log read permission could harvest the backend credentials. Users are advised to upgrade to `apache-airflow-providers-elasticsearch` 6.5.3 or later and, as a defense-in-depth measure, configure the backend credentials via a secret backend rather than embedding them in the `[elasticsearch] host` URL.
Problem types
CWE-532: Insertion of Sensitive Information into Log File
Product status
Any version before 6.5.3
Credits
Aleksandr Sozinov
Jarek Potiuk
References
www.openwall.com/lists/oss-security/2026/05/10/3
github.com/apache/airflow/pull/65349
lists.apache.org/thread/wz5l58drprmwlv6jxnq466x24jqbbhp7