CVE-2026-38743

CVE-2026-38743: Apache Airflow: Dags endpoint might provide access to otherwise inaccessible entities

Vendor Apache Software Foundation
Product Apache Airflow
Weakness CWE-1220
Published April 24, 2026
Last update April 24, 2026

CVSS base score

What the vulnerability does

Description

The authenticated /ui/dags endpoint did not enforce per-DAG access control on embedded Human-in-the-Loop (HITL) and TaskInstance records: a logged-in Airflow user with read access to at least one DAG could retrieve HITL prompts (including their request parameters) and full TaskInstance details for DAGs outside their authorized scope. Because HITL prompts and TaskInstance fields routinely carry operator parameters and free-form context attached to a task, the leak widens visibility of DAG-run data beyond the intended per-DAG RBAC boundary for every authenticated user. Users are recommended to upgrade to version 3.2.1 , which fixes this issue.

Key dates

Disclosure timeline

April 24, 2026 CVE published
April 24, 2026 Record updated