AIKIDO-2026-297701
apache-airflow-providers-fab is vulnerable to Origin Validation Error
81
CVE Score
High
Origin Validation Error
TL;DR
The Authentik OAuth path in the FAB auth manager does not validate the origin of the OAuth response it receives before completing sign-in. A response redirected from an unintended origin can still be accepted and completed as a valid login. This lets sign-in proceed using an OAuth response Airflow should not have trusted. The fix validates the OAuth response's origin against the configured Authentik provider before completing sign-in.
How do I fix this?
Upgrade the apache-airflow-providers-fab library to the patch version.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and run Authentik configured as an OAuth login provider for the FAB auth manager.
Package
Versions
0.0.1 - 3.8.1
Fixed in 3.9.0Background info
apache-airflow-providers-fab is vulnerable to Origin Validation Error in versions 0.0.1 - 3.8.1.
Links
Other
airflow.apache.org/docs/apache-airflow-providers-fab/3.9.0/changelog.htmllists.apache.org/thread/qh7fobs16p2hgln2yblbgf8ty4dvf4y7lists.apache.org/thread/qh7fobs16p2hgln2yblbgf8ty4dvf4y7?users@airflow.apache.org
Get secure today,
quickly and for free.
Secure your code, cloud, and runtime in one central system. Connect a repo to discover what the reasoning agents find in your codebase.
No credit card required | Scan results in 32 seconds.
I consent to receiving marketing communications based on Aikido’s Privacy Policy.
SOC 2Compliant
ISO 27001CompliantISO 42001Compliant
FedRAMPAuthorized© All Intel data is openly available and commercially licensed.