SAML Authentication Bypass in AWS Auth Manager by Apache
CVE-2026-25604

5.4MEDIUM

Key Information:

Vendor

Apache
Status
Apache Airflow Providers Amazon
Vendor
CVE Published:
9 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-25604?

A vulnerability exists in AWS Auth Manager where the SAML authentication origin is utilized as provided by the client, without verification against the actual instance URL. This flaw potentially allows unauthorized access to different instances that may enforce diverse access controls, as attackers can leverage SAML responses from other instances. To mitigate this risk, users should update to version 9.22.0.

Affected Version(s)

Apache Airflow Providers Amazon 8.0.0 < 9.22.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-25604-PoC
Created by John-Jung

References

https://github.com/apache/airflow/pull/61368
patch
https://lists.apache.org/thread/spwwrsmwxod7fpttcd7n7zs46...
vendor-advisory

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Sungwuk Jung
.