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.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 12 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
References

Wed, 12 Aug 2026 16:00:00 +0000

Type Values Removed Values Added
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.
Title Apache Airflow: Secrets masker: `var.json` Variable values not masked in the Rendered Templates UI
Weaknesses CWE-312
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-08-12T17:20:19.495Z

Reserved: 2026-07-04T00:20:30.244Z

Link: CVE-2026-59244

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-12T16:17:09.197

Modified: 2026-08-12T18:17:34.397

Link: CVE-2026-59244

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses