CVE-2026-59244

Fixed upstream EPSS <1%CVSS 6.5

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.

Published 2026-08-12 · CVE record · OSV

Products: Apache Software Foundation Apache Airflow

Fixed upstream

Distro releases