medium6.5
CVE-2026-41018
The Elasticsearch logging provider, when configured with a `host` URL that embeds credentials (for example `https://user:password@server.example.com:9200`), wr…
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | apache-airflow-providers-elasticsearch | < 6.5.3 | 6.5.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Apache-Airflow-Providers-Elasticsearch | before 6.5.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-g3jr-4jrm-jvqv
- https://nvd.nist.gov/vuln/detail/CVE-2026-41018
- https://github.com/apache/airflow/pull/65349
- https://lists.apache.org/thread/wz5l58drprmwlv6jxnq466x24jqbbhp7
- http://www.openwall.com/lists/oss-security/2026/05/10/3
- https://github.com/apache/airflow/commit/f9244064016a8db45277efb0c24808e663b233f3
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-elasticsearch/PYSEC-2026-22.yaml