CVE-2025-15566

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-proxy-set-headers` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/kubernetes/kubernetes/issues/136789

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) Se descubrió una vulnerabilidad de seguridad en ingress-nginx donde la anotación de Ingress 'nginx.ingress.kubernetes.io/auth-proxy-set-headers' puede utilizarse para inyectar configuración en nginx. Esto puede conducir a la ejecución de código arbitrario en el contexto del controlador ingress-nginx y a la divulgación de Secrets accesibles para el controlador. (Tenga en cuenta que, en la instalación predeterminada, el controlador puede acceder a todos los Secrets a nivel de clúster).

06 Feb 2026, 04:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-06 04:15

Updated : 2026-06-17 08:38

NVD link : CVE-2025-15566

Mitre link : CVE-2025-15566

CVE.ORG link : CVE-2025-15566

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

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