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CVE-2026-25604— Apache Airflow AWS Auth Manager - Host Header Injection Leading to SAML Authentication Bypass

Quick assessment

Affected
Apache Software Foundation Apache Airflow Providers Amazon
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Airflow是美国阿帕奇（Apache）基金会的一套具有创建、管理和监控工作流程功能的开源平台。该平台具有可扩展和动态监控等特点。 Apache Airflow 9.22.0之前版本存在安全漏洞，该漏洞源于未验证SAML身份验证的来源，可能导致通过重用其他实例的SAML响应访问具有不同访问控制的实例。

AI Predicted 8.8 Difficulty: Easy EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services
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I. Basic Information for CVE-2026-25604

Vulnerability Information
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Vulnerability Title
Apache Airflow AWS Auth Manager - Host Header Injection Leading to SAML Authentication Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
源验证错误
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Airflow 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Airflow是美国阿帕奇（Apache）基金会的一套具有创建、管理和监控工作流程功能的开源平台。该平台具有可扩展和动态监控等特点。 Apache Airflow 9.22.0之前版本存在安全漏洞，该漏洞源于未验证SAML身份验证的来源，可能导致通过重用其他实例的SAML响应访问具有不同访问控制的实例。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Airflow Providers Amazon 8.0.0 ~ 9.22.0 -

II. Public POCs for CVE-2026-25604

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III. Intelligence Information for CVE-2026-25604

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Patches & Fixes for CVE-2026-25604 (1)

Mailing List Discussions for CVE-2026-25604 (1)

Same Patch Batch · Apache Software Foundation · 2026-03-09 · 4 CVEs total

CVE-2026-24015 Apache IoTDB: Insecure Default Configuration Vulnerability
CVE-2026-24713 Apache IoTDB: JEXL Expression Injection Vulnerability
CVE-2025-69219 Apache Airflow Providers Http: Unsafe Pickle Deserialization in apache-airflow-providers-h

IV. Related Vulnerabilities

Same vendor: Apache Software Foundation
Same weakness: CWE-346

V. Comments for CVE-2026-25604

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