In Apache Airflow versions before 3.1.6, when rendered template fields in a Dag exceed [core] max_templated_field_length, sensitive values could be exposed in cleartext in the Rendered Templates UI. This occurred because serialization of those fields used a secrets masker instance that did not include user-registered mask_secret() patterns, so secrets were not reliably masked before truncation and display. Users are recommended to upgrade to 3.1.6 or later, which fixes this issue
History

Wed, 21 Jan 2026 13:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*

Fri, 16 Jan 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 Jan 2026 14:15:00 +0000

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

Fri, 16 Jan 2026 11:30:00 +0000

Type Values Removed Values Added
References

Fri, 16 Jan 2026 10:30:00 +0000

Type Values Removed Values Added
Description In Apache Airflow versions before 3.1.6, when rendered template fields in a Dag exceed [core] max_templated_field_length, sensitive values could be exposed in cleartext in the Rendered Templates UI. This occurred because serialization of those fields used a secrets masker instance that did not include user-registered mask_secret() patterns, so secrets were not reliably masked before truncation and display. Users are recommended to upgrade to 3.1.6 or later, which fixes this issue
Title Apache Airflow: Secrets in rendered templates could contain parts of sensitive values when truncated
Weaknesses CWE-200
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-01-16T16:10:02.986Z

Reserved: 2025-12-17T16:31:12.717Z

Link: CVE-2025-68438

cve-icon Vulnrichment

Updated: 2026-01-16T10:09:02.658Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-16T11:16:03.760

Modified: 2026-01-21T13:44:43.577

Link: CVE-2025-68438

cve-icon Redhat

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