CVE-2026-30911: Apache Airflow: Execution API HITL Endpoints Missing Per-Task Authorization

[Rahul Vats <rahulvats () apache org>]

Severity: low 

Affected versions:

- Apache Airflow (apache-airflow) 3.1.0 before 3.1.8

Description:

Apache Airflow versions 3.1.0 through 3.1.7 missing authorization vulnerability in the Execution API's 
Human-in-the-Loop (HITL) endpoints that allows any authenticated task instance to read, approve, or reject HITL 
workflows belonging to any other task instance.


Users are recommended to upgrade to Apache Airflow 3.1.8 or later, which resolves this issue.

Credit:

Kai Aizen (finder)
Aritra Basu (remediation developer)

References:

https://github.com/apache/airflow/pull/62886
https://airflow.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-30911