Apache Airflow up to 3.2.x REST API information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, was found in Apache Airflow up to 3.2.x. Affected by this issue is some unknown functionality of the component REST API. Executing a manipulation can lead to information disclosure. This vulnerability is registered as CVE-2026-49487. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Apache Airflow up to 3.2.x. It has been declared as problematic. This vulnerability affects some unknown functionality of the component REST API. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task's trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any authenticated user with DAG-scoped task-instance read access for that DAG could read that secret in clear text while the task was deferred. Users should upgrade to apache-airflow 3.3.0 or later, which masks sensitive values in trigger kwargs returned by the API.

The advisory is available at github.com. This vulnerability was named CVE-2026-49487 since 05/31/2026. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/07/2026). This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 3.3.0 eliminates this vulnerability.

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Productinfo

Type

• Business Process Management Software

Vendor

• Apache

Name

• Airflow

Version

• 3.0
• 3.1
• 3.2

License

• open-source

Website

• Vendor: https://www.apache.org/
• Product: https://github.com/apache/airflow/

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