CVE-2026-25604
Apache Airflow AWS Auth Manager - Host Header Injection Leading to SAML Authentication Bypass
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Apache Airflow AWS Auth Manager - Host Header Injection Leading to SAML Authentication Bypass
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.
- Record
CVE-2026-25604- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
EUVDEUVD-2026-10318
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.
- Record
EUVD-2026-10318- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rv5f-ccpm-xjj4
Apache Airflow AWS Auth Manager has Host Header Injection Leading to SAML Authentication Bypass
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.
- Record
GHSA-rv5f-ccpm-xjj4- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-25604- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
OSV
Apache Airflow AWS Auth Manager - Host Header Injection Leading to SAML Authentication Bypass
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.
- Record
CVE-2026-25604- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
OSVGHSA-rv5f-ccpm-xjj4
Apache Airflow AWS Auth Manager has Host Header Injection Leading to SAML Authentication Bypass
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.
- Record
GHSA-rv5f-ccpm-xjj4- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-346
- Updated
- 2026-11-02
OSVPYSEC-2026-2363
Apache Airflow AWS Auth Manager has Host Header Injection Leading to SAML Authentication Bypass
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.
- Record
PYSEC-2026-2363- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
apache-airflow-providers-amazonPyPI |
before 9.22.0 | 9.22.0 |
apache-airflow-providers-amazonPyPI |
before 9.22.0, plus listed versions 1.0.01.0.0b11.0.0b21.0.0rc11.1.0 Show 45 moreShow less1.1.0rc11.2.01.2.0rc11.3.01.3.0rc11.4.01.4.0rc12.0.02.0.0rc12.0.0rc22.1.02.1.0rc12.1.0rc22.2.02.2.0rc12.3.02.3.0rc12.3.0rc22.4.02.4.0rc12.4.0rc22.5.02.5.0rc12.6.02.6.0rc13.0.03.0.0rc13.0.0rc23.1.0rc13.1.13.1.1rc13.2.03.2.0rc13.3.03.3.0rc13.4.03.4.0rc14.0.04.0.0rc14.0.0rc24.1.04.1.0rc15.0.05.0.0rc15.0.0rc2 |
9.22.0 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | John-Jung/CVE-2026-25604-PoC | 2026-04-22 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-25604 is a medium vulnerability (CVSS 5.4) in Apache Apache-airflow-providers-amazon, published March 9, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. Fixed in apache-airflow-providers-amazon 9.22.0.
References
Left out here: 161 versions. The JSON record has them.