CVE Catalog

CVE-2026-43826

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.41%

35th percentile - higher than 35% of all known CVEs

Summary

The OpenSearch logging provider in Apache Airflow, when configured with a host URL embedding credentials (e.g., https://user:password@server:9200), wrote the full host URL including 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-opensearch 1.9.1 or later.

Risk Assessment

Exposure of OpenSearch backend credentials may enable unauthorized access to and manipulation of data. The risk affects Airflow environments where credentials are embedded in the host URL.

Recommendation

Upgrade apache-airflow-providers-opensearch to version 1.9.1 or later. Configure backend credentials via a secret backend instead of embedding them in the host URL.

Related vulnerabilities

Original NVD description (English source)

The OpenSearch 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-opensearch` 1.9.1 or later and, as a defense-in-depth measure, configure the backend credentials via a secret backend rather than embedding them in the `[opensearch] host` URL.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS