The Elasticsearch 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-elasticsearch` 6.5.3 or later and, as a defense-in-depth measure, configure the backend credentials via a secret backend rather than embedding them in the `[elasticsearch] host` URL.

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Fixes

Solution

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Workaround

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History

Mon, 11 May 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache airflow Providers Elasticsearch
Vendors & Products Apache
Apache airflow Providers Elasticsearch

Mon, 11 May 2026 15:15:00 +0000

Type Values Removed Values Added
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 11 May 2026 08:45:00 +0000

Type Values Removed Values Added
Description The Elasticsearch 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-elasticsearch` 6.5.3 or later and, as a defense-in-depth measure, configure the backend credentials via a secret backend rather than embedding them in the `[elasticsearch] host` URL.
Title Apache Airflow Providers Elasticsearch: Elasticsearch task-log handler leaks credentials embedded in the host URL
Weaknesses CWE-532
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-05-11T12:59:39.211Z

Reserved: 2026-04-16T03:09:25.534Z

Link: CVE-2026-41018

cve-icon Vulnrichment

Updated: 2026-05-11T09:12:35.601Z

cve-icon NVD

Status : Received

Published: 2026-05-11T09:16:25.990

Modified: 2026-05-11T14:16:31.053

Link: CVE-2026-41018

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-11T17:15:40Z

Weaknesses