CVE-2026-41018
Last modified
CVE-2026-41018 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Apache-Airflow-Providers-Elasticsearch | < 6.5.3 |
References
- https://github.com/apache/airflow/pull/65349Issue Tracking, Patch
- https://lists.apache.org/thread/wz5l58drprmwlv6jxnq466x24jqbbhp7Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/05/10/3Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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