CVE-2026-41018Medium· 6.5▾ SunlitApache Airflow Providers Elasticsearch: Elasticsearch task-log handlers leak credentials embedded in the host URL
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.4%
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. 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.
apache-airflow-providers-elasticsearch < 6.5.3Upgrade to a patched release:
apache-airflow-providers-elasticsearch 6.5.3