Apache Airflow · Apache Airflow Providers Elasticsearch · CVE-2026-41018
**Name of the Vulnerable Software and Affected Versions**
apache-airflow-providers-elasticsearch versions prior to 6.5.3
**Description**
The Elasticsearch logging provider writes the full host URL into task logs when configured with a `host` URL that embeds credentials. This allows any user with task-log read permissions to harvest the backend credentials.
**Recommendations**
Upgrade to version 6.5.3 or later.
Configure backend credentials via a secret backend instead of embedding them in the `host` URL.