{"schema_version": "1.6.1", "id": "CVE-2026-43826", "summary": "OpenSearch task-log handler leaks credentials embedded in the host URL", "details": "The OpenSearch 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-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.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "0"}, {"fixed": "1.9.1"}]}]}], "references": [{"type": "WEB", "url": "https://github.com/apache/airflow/pull/65509"}, {"type": "WEB", "url": "https://lists.apache.org/thread/bxsrqx1vwssovnwnrvgh9xcosptmf73y"}]}