Apache Airflow's secrets masker stopped descending into nested structures after five levels, so a secret registered with the masker — for example a Connection password or a Variable value — that appeared more than five containers deep under non-sensitive keys was shown in cleartext in task logs and rendered template fields. A user who can read task logs or rendered templates, but is not meant to see those secrets, could read them. Users are advised to upgrade to apache-airflow 3.4.0 or later.
History

Mon, 09 Nov 2026 11:30:00 +0000

Type Values Removed Values Added
References

Mon, 09 Nov 2026 11:00:00 +0000

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

Mon, 09 Nov 2026 09:30:00 +0000

Type Values Removed Values Added
Description Apache Airflow's secrets masker stopped descending into nested structures after five levels, so a secret registered with the masker — for example a Connection password or a Variable value — that appeared more than five containers deep under non-sensitive keys was shown in cleartext in task logs and rendered template fields. A user who can read task logs or rendered templates, but is not meant to see those secrets, could read them. Users are advised to upgrade to apache-airflow 3.4.0 or later.
Title Apache Airflow: Secrets masker: pattern-based masking bounded at depth 5 returns deeply-nested registered secrets in cleartext
Weaknesses CWE-497
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-11-09T09:21:35.743Z

Updated: 2026-11-09T10:09:43.538Z

Reserved: 2026-10-20T10:43:30.424Z

Link: CVE-2026-113504

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-09T10:17:05.303

Modified: 2026-11-09T11:17:20.550

Link: CVE-2026-113504

cve-icon Redhat

No data.