Information disclosure in Apache Airflow - CVE-2026-59244
Published: August 24, 2026
Vulnerability identifier: #VU144873
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59244
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper handling of secret masking in the Rendered Templates UI when rendering templates that reference `var.json` Variable values stored as dictionaries. A remote user can view a task's Rendered Templates page to disclose sensitive information.
Only JSON Variable values with dictionary content referenced through `var.json` are exposed in cleartext.
Affected software
Apache Airflow
How to mitigate CVE-2026-59244
Install security update from vendor's website.
Apache Airflow - update to 3.3.1