CVE-2025-62503 Apache Airflow: Privilege boundary bypass in bulk APIs (create action can upsert existing Pools/Connections/Variables)

What is CVE-2025-62503?

CVE-2025-62503 is a medium-severity missing authorization vulnerability in Apache Airflow, published on 30 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

User with CREATE and no UPDATE privilege for Pools, Connections, Variables could update existing records via bulk create API with overwrite action.

Weakness: CWE-250

Which versions are affected by CVE-2025-62503?

4 open source packages ship an affected version, including apache-airflow and airflow. It affects 1 product.

Products include Apache Airflow.

How do I fix CVE-2025-62503?

Upgrade apache-airflow to 3.1.1 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-62503 being exploited?

There is no known exploitation of CVE-2025-62503 in the wild and no public exploit code.

Other vulnerabilities in Apache Airflow

• CVE-2020-13927 Apache Airflow's Experimental API Authentication Bypass Exploited Critical 9.8
• CVE-2020-11978 Apache Airflow Command Injection Exploited High 8.8
• CVE-2026-33264 Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize() Critical 9.8
• CVE-2023-25754 Apache Airflow: Privilege escalation using airflow logs Critical 9.8
• CVE-2023-22884 Apache Airflow, Apache Airflow MySQL Provider: Arbitrary file read via MySQL provider in Apache Airflow Critical 9.8

All Apache Airflow vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-airflow-2025-62503, GHSA-gp5f-cx7h-8q6f, MINI-pc33-m97g-x9c8, PYSEC-2026-1133.