Insertion of Sensitive Information into Log File Affecting apache-airflow-providers-opensearch package, versions [1.5.0rc1,1.9.1rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-APACHEAIRFLOWPROVIDERSOPENSEARCH-16636193
- published11 May 2026
- disclosed11 May 2026
- creditOwen-CH-Leung, Aleksandr Sozinov
Introduced: 11 May 2026
CVE-2026-43826 (opens in a new tab)How to fix?
Upgrade apache-airflow-providers-opensearch to version 1.9.1rc1 or higher.
Overview
apache-airflow-providers-opensearch is a Provider package apache-airflow-providers-opensearch for Apache Airflow
Affected versions of this package are vulnerable to Insertion of Sensitive Information into Log File via the _group_logs_by_host method in os_task_handler.py. An attacker can expose the user:password@ portion of the configured OpenSearch host by causing task-log grouping to fall back to the raw [opensearch] host value when log hits do not include a host field. The leaked credentials appear in task logs as the log-source label, allowing anyone with access to those logs to recover the OpenSearch connection secret and use it to access the backend.
Workarounds
- Configure backend credentials via a secret backend instead of embedding
user:password@in the[opensearch] hostURL; this prevents the credentials from being written into task logs when log-source labels are generated.