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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-59244

Apache Airflow: Secrets masker: `var.json` Variable values not masked in the Rendered Templates UI

Description

Apache Airflow's secrets masker did not mask `var.json` Variable values whose value is a dict in the Rendered Templates UI — the dict value failed an `isinstance(str)` guard — so a secret stored as a JSON Variable and referenced in a template via `var.json` was displayed in cleartext to any user with access to that task's Rendered Templates view. Users are advised to upgrade to apache-airflow 3.3.1 or later, which masks nested Variable values regardless of type.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Airflow

Default version status: unaffected

  • 0 to < 3.3.1affected
pkg:pypi/apache-airflow

References