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
References
https://lists.apache.org/thread/55n7b4nlsz3vo5n4h5lrj9bfsk8ctyff
http://www.openwall.com/lists/oss-security/2026/01/15/5
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 · High
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-16T11:16:03.760Z
1 month agoLast modified
2026-01-21T13:44:43.577Z
1 month ago