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.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.5.3CPE matchmatch criteria | cpe:2.3:a:apache:apache-airflow-providers-elasticsearch:*:*:*:*:*:*:*:* | ||
>= 0, < 6.5.3CPE match | cpe:2.3:a:apache:apache-airflow-providers-elasticsearch:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Apache Airflow Providers Elasticsearch: Elasticsearch task-log handlers leak credentials embedded in the host URL
May 11, 2026CVE-2026-41018: Apache Airflow Providers Elasticsearch: Elasticsearch task-log handlers leak credentials embedded in the host URL
May 10, 2026