CVE-2025-68438
HIGH7.5EPSS 0.03%Apache Airflow: Secrets in rendered templates could contain parts of sensitive values when truncated
Published: 1/16/2026Modified: 5/20/2026
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
Affected packages (3)
- Bitnami/airflow>= 3.1.0, < 3.1.6
- PyPI/apache-airflow>= 3.1.0, < 3.1.6
- PyPI/apache-airflow>= 3.1.0, < 3.1.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |