| Package | Affected versions | Patched versions |
|---|---|---|
| apache-airflow | < 3.3.1 | 3.3.1 |
| airflow | < 3.3.1 | 3.3.1 |
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.
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