CVE-2026-59244

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/apache/airflow/pull/68975	Issue Tracking Patch
https://lists.apache.org/thread/fncod6vttfo5fvmfs3h9r8s2kmm9j1n6	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/08/12/7	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-12 16:17

Updated : 2026-09-16 15:17

NVD link : CVE-2026-59244

Mitre link : CVE-2026-59244

CVE.ORG link : CVE-2026-59244

JSON object : View

Products Affected

apache

airflow

CWE

CWE-312

Cleartext Storage of Sensitive Information

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