CVE-2026-25604
Apache Airflow AWS Auth Manager has Host Header Injection Leading to SAML Authentication Bypass
5.4
MEDIUM
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2026-25604
To remediate CVE-2026-25604, upgrade the affected package to a fixed version below.
- —upgrade to 9.22.0 or later
Is CVE-2026-25604 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 9.22.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |