CVE-2026-25604

Apache Airflow AWS Auth Manager - Host Header Injection Leading to SAML Authentication Bypass

In AWS Auth manager, the origin of the SAML authentication has been used as provided by the client and not verified against the actual instance URL. This allowed to gain access to different instances with potentially different access controls by reusing SAML response from other instances. You should upgrade to 9.22.0 version of provider if you use AWS Auth Manager.

Affected

Apache Software Foundation · Apache Airflow Providers Amazon

CVSS v3.1 CNA

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS

0.53% chance of exploitation in the next 30 days, 44th percentile

Published

2026-03-09

Proof-of-concept exploits (1)

• John-Jung/CVE-2026-25604-PoC0★ · 2026-04-22

Security advisories

• http://www.openwall.com/lists/oss-security/2026/03/09/6
• advisories/GHSA-rv5f-ccpm-xjj4
• apache/airflow/pull/61368

References

• CVE Record
• NVD entry