CVE-2025-68438
High
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
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Airflow
PublishedJan 16, 2026
First seenJan 16, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- apache airflow3.1.6 or later
- apache-airflow3.1.6 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache airflow | 3.1.0 ≤ v < 3.1.6 | 3.1.6 |
| apache-airflowPyPI | 3.1.0 ≤ v < 3.1.6 | 3.1.6 |
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