CVE-2026-25604

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

MEDIUM
5.4
CVSS Score
Published: March 9, 2026 at 10:39 AM UTC
Updated: July 2, 2026 at 04:48 PM UTC
1 product affected across 1 vendorApache Airflow Providers Amazon

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

8.0.0 ≤ v < 9.22.08.0.0
Affected range stops below 9.22.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

PatchIssue Tracking
Source: cverecord
https://github.com/apache/airflow/pull/61368
Vendor AdvisoryMailing List
Source: cverecord
https://lists.apache.org/thread/spwwrsmwxod7fpttcd7n7zs46j839l77
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/03/09/6

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-346

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