CVE-2026-3288

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/rewrite-target` 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.)
References
Link Resource
https://github.com/kubernetes/kubernetes/issues/137560 Issue Tracking Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/03/09/8 Mailing List Third Party Advisory
https://github.com/bvabhishek/CVE-2026-3288-lab Mitigation Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*
cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*

History

06 May 2026, 17:51

Type Values Removed Values Added
First Time Kubernetes ingress-nginx
Kubernetes
References () https://github.com/kubernetes/kubernetes/issues/137560 - () https://github.com/kubernetes/kubernetes/issues/137560 - Issue Tracking, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2026/03/09/8 - () http://www.openwall.com/lists/oss-security/2026/03/09/8 - Mailing List, Third Party Advisory
References () https://github.com/bvabhishek/CVE-2026-3288-lab - () https://github.com/bvabhishek/CVE-2026-3288-lab - Mitigation, Third Party Advisory
CWE NVD-CWE-noinfo
CPE cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*

30 Apr 2026, 13:16

Type Values Removed Values Added
References
  • () https://github.com/bvabhishek/CVE-2026-3288-lab -

11 Mar 2026, 13:53

Type Values Removed Values Added
Summary
  • (es) Se descubrió un problema de seguridad en ingress-nginx donde la anotación Ingress 'nginx.ingress.kubernetes.io/rewrite-target' puede usarse para inyectar configuración en nginx. Esto puede llevar 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 de todo el clúster).

10 Mar 2026, 07:45

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/03/09/8 -

09 Mar 2026, 21:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-09 21:16

Updated : 2026-06-17 10:43


NVD link : CVE-2026-3288

Mitre link : CVE-2026-3288

CVE.ORG link : CVE-2026-3288


JSON object : View

Products Affected

kubernetes

  • ingress-nginx
CWE
CWE-20

Improper Input Validation

NVD-CWE-noinfo