CVE-2026-41018

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/apache/airflow/pull/65349	Issue Tracking Patch
https://lists.apache.org/thread/wz5l58drprmwlv6jxnq466x24jqbbhp7	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/10/3	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:apache-airflow-providers-elasticsearch:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-11 09:16

Updated : 2026-06-17 10:46

NVD link : CVE-2026-41018

Mitre link : CVE-2026-41018

CVE.ORG link : CVE-2026-41018

JSON object : View

Products Affected

apache

apache-airflow-providers-elasticsearch

CWE

CWE-532

Insertion of Sensitive Information into Log File

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