CVE-2026-59244 — Apache Airflow: Secrets masker: `var.json` Variable values not masked in the Rendered Templates UI

Description (CNA)

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 (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Airflow	affected 0 before 3.3.1

CWE

CWE-312

References

https://github.com/apache/airflow/pull/68975
https://lists.apache.org/thread/fncod6vttfo5fvmfs3h9r8s2kmm9j1n6

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/08/12/7

CISA-ADP

No English description supplied.

No references supplied.