CVE-2025-68438: Apache Airflow

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

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

Affected products

• Apache Airflow: from 3.1.0, before 3.1.6 (fixed in 3.1.6)

Published 2026-01-16. Last modified 2026-06-17.