CVE-2026-25604

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

CVSS 5.4 MEDIUMEPSS 0.4%CWE-346

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.4EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

09 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Apache Software Foundation · Apache Airflow Providers Amazon

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References

https://github.com/apache/airflow/pull/61368 https://lists.apache.org/thread/spwwrsmwxod7fpttcd7n7zs46j839l77 http://www.openwall.com/lists/oss-security/2026/03/09/6