CVE-2026-38743

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.

PUBLISHED Reserved 2026-04-06 | Published 2026-04-24 | Updated 2026-04-24 | Assigner apache

Problem types

CWE-1220: Insufficient Granularity of Access Control

Product status

Credits

Jed Cunningham finder

Kevin Yang remediation developer

References

www.openwall.com/lists/oss-security/2026/04/24/3

github.com/apache/airflow/pull/64822 patch

lists.apache.org/thread/sk2wj0x48o8qb4p7c47gvnhjbm0mg396 vendor-advisory

cve.org (CVE-2026-38743)

nvd.nist.gov (CVE-2026-38743)

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