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CVE-2026-25604PYSEC-2026-2363GHSA-RV5F-CCPM-XJJ4

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 9.22.0
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • apache-airflow-providers-amazon

    From 8.0.0 · fixed in 9.22.0

  • apache-airflow-providers-amazonPyPI

    fixed in 9.22.0

References 3

GitHub · apache/airflow

lists.apache.org

GitHub · John-Jung/CVE-2026-25604-PoC