CVE-2026-43826

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.

PUBLISHED Reserved 2026-05-02 | Published 2026-05-11 | Updated 2026-05-11 | Assigner apache

Problem types

CWE-532: Insertion of Sensitive Information into Log File

Product status

Credits

Aleksandr Sozinov finder

Owen-CH-Leung finder

Jarek Potiuk remediation developer

References

www.openwall.com/lists/oss-security/2026/05/10/2

github.com/apache/airflow/pull/65509 patch

lists.apache.org/thread/bxsrqx1vwssovnwnrvgh9xcosptmf73y vendor-advisory

cve.org (CVE-2026-43826)

nvd.nist.gov (CVE-2026-43826)

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