CVE-2026-41018 — Apache Airflow Providers Elasticsearch: Elasticsearch task-log handler leaks credentials embedded in the host URL

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Airflow Providers Elasticsearch	affected 0 before 6.5.3

CWE

CWE-532

References

https://github.com/apache/airflow/pull/65349
https://lists.apache.org/thread/wz5l58drprmwlv6jxnq466x24jqbbhp7

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/05/10/3

CISA-ADP

No English description supplied.

No references supplied.