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
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-3qmm-r55x-hpxx Apache Airflow secrets in rendered templates could contain parts of sensitive values when truncated
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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

Projects

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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 : Undergoing Analysis

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

Modified: 2026-01-16T16:15:54.007

Link: CVE-2025-68438

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-16T13:41:38Z

Weaknesses