CVE-2026-43826
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Apache-airflow-providers-opensearch
PublishedMay 11, 2026
First seenMay 11, 2026
Weakness typeCWE-532CWE-532
How to fix
Update
- apache apache-airflow-providers-opensearch1.9.1 or later
- apache-airflow-providers-opensearch1.9.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache apache-airflow-providers-opensearch | v < 1.9.1 | 1.9.1 |
| apache-airflow-providers-opensearchPyPI | v < 1.9.1 | 1.9.1 |
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