{"cve":"CVE-2026-43826","nvd":{"published":"2026-05-11T09:16:26.143","modified":"2026-10-26T18:10:00.173","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-532"],"references":["https://github.com/apache/airflow/pull/65509","https://lists.apache.org/thread/bxsrqx1vwssovnwnrvgh9xcosptmf73y","http://www.openwall.com/lists/oss-security/2026/05/10/2"],"products":["apache:apache-airflow-providers-opensearch"],"source":"nvd","synced_at":"2026-10-26T18:27:13.530666824+00:00"},"epss":{"cve":"CVE-2026-43826","score":0.0041,"percentile":0.35005,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-xccp-97wp-3gjg","url":"https://osv.dev/vulnerability/GHSA-xccp-97wp-3gjg","summary":"Apache Airflow Providers OpenSearch: OpenSearch task-log handler leaks credentials embedded in the host URL","modified":"2026-06-05T14:30:12.723664332Z","packages":[{"ecosystem":"PyPI","name":"apache-airflow-providers-opensearch","purl":"pkg:pypi/apache-airflow-providers-opensearch","ranges":["<1.9.1"],"fixed":["1.9.1"]}]},{"id":"PYSEC-2026-23","url":"https://osv.dev/vulnerability/PYSEC-2026-23","summary":"","modified":"2026-06-10T17:00:05.436540126Z","packages":[{"ecosystem":"PyPI","name":"apache-airflow-providers-opensearch","purl":"pkg:pypi/apache-airflow-providers-opensearch","ranges":["<1.9.1"],"fixed":["1.9.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}