CVE-2020-17526: Apache Airflow

High severity, CVSS 7.7. EPSS: 23.3% chance of exploitation in the next 30 days.

Incorrect Session Validation in Apache Airflow Webserver versions prior to 1.10.14 with default config allows a malicious airflow user on site A where they log in normally, to access unauthorized Airflow Webserver on Site B through the session from Site A. This does not affect users who have changed the default value for `[webserver] secret_key` config.

Affected products

• Apache Airflow: before 1.10.14 (fixed in 1.10.14)

Published 2020-12-21. Last modified 2026-06-17.