{"id":"UBUNTU-CVE-2026-43826","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.","modified":"2026-05-14T14:53:42.644355Z","published":"2026-05-11T09:16:00Z","upstream":["CVE-2026-43826"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43826"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-43826"},{"type":"REPORT","url":"https://github.com/apache/airflow/pull/65509"},{"type":"REPORT","url":"https://lists.apache.org/thread/bxsrqx1vwssovnwnrvgh9xcosptmf73y"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2026/05/10/2"}],"affected":[{"package":{"name":"opensearch","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/opensearch@2.4.1+dfsg-2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.1+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libopensearch-java","binary_version":"2.4.1+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43826.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}