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

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

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

Link: CVE-2025-68438

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

Modified: 2026-01-16T11:16:03.760

Link: CVE-2025-68438

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.