Severity: low Affected versions:
- Apache Airflow Providers Elasticsearch (apache-airflow-providers-elasticsearch) before 6.5.3 Description: The Elasticsearch logging provider, when configured with a `host` URL that embeds credentials (for example ` https://user:[email protected]: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. The two providers are forks of the same codebase and shared the same bug. Users are advised to upgrade to a fixed version of `apache-airflow-providers-elasticsearch` and, as a defense-in-depth measure, configure the backend credentials via a secret backend rather than embedding them in the `[elasticsearch]` URL. Credit: Aleksandr Sozinov (finder) Jarek Potiuk (remediation developer) References: https://github.com/apache/airflow/pull/65349 https://github.com/apache/airflow/pull/65509 https://airflow.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-41018
