CVE-2026-25219

CVE-2026-25219: Apache Airflow: Sensitive Azure Service Bus connection string (and possibly other providers) exposed to users with view access

Vendor Apache Software Foundation
Product Apache Airflow
Weakness CWE-200 · Info exposure
Published April 15, 2026
Last update April 15, 2026

CVSS base score

What the vulnerability does

Description

The `access_key` and `connection_string` connection properties were not marked as sensitive names in secrets masker. This means that user with read permission could see the values in Connection UI, as well as when Connection was accidentaly logged to logs, those values could be seen in the logs. Azure Service Bus used those properties to store sensitive values. Possibly other providers could be also affected if they used the same fields to store sensitive data. If you used Azure Service Bus connection with those values set or if you have other connections with those values storing sensitve values, you should upgrade Airflow to 3.1.8

Key dates

Disclosure timeline

April 15, 2026 CVE published
April 15, 2026 Record updated