CVE-2026-25604CWE-346

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

Medium · published March 9, 2026

CVSS v3.1
5.4
EPSS
1%
Percentile
44.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00531 · 44.0th percentile
Weakness
CWE-346 · Origin Validation Error
Published
2026-03-09T10:39Z
EPSS history
Timeline
  • 09 MAR 10:39Z
    Apache Airflow AWS Auth Manager - Host Header Injection Leading to SAML Authentication Bypass
    cvelistv5