CVE-2020-13944 Apache Airflow Cross-site Scripting

What is CVE-2020-13944?

CVE-2020-13944 is a medium-severity cross-site scripting vulnerability in Apache Airflow, published on 17 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

In Apache Airflow < 1.10.12, the "origin" parameter passed to some of the endpoints like '/trigger' was vulnerable to XSS exploit.

Weakness: CWE-79

Which versions are affected by CVE-2020-13944?

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-2020-13944?

Upgrade apache-airflow to 1.10.12 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2020-13944 being exploited?

There is no known exploitation of CVE-2020-13944 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-2020-13944, GHSA-4pwq-fj89-6rjc, PYSEC-2020-19.