Arbitrary Code Execution Vulnerability in Ingress-NGINX by Kubernetes
CVE-2026-1580

8.8HIGH

Key Information:

Vendor

Kubernetes
Status
Ingress-nginx
Vendor
CVE Published:
3 February 2026

What is CVE-2026-1580?

A security issue in the Ingress-NGINX controller allows the injection of configuration through the nginx.ingress.kubernetes.io/auth-method annotation. This misconfiguration can lead to arbitrary code execution within the ingress-nginx controller, potentially exposing sensitive Secrets that the controller can access across the entire cluster. In the default setup, this could result in significant security risks if not addressed promptly.

Affected Version(s)

ingress-nginx 0

ingress-nginx 0 < 1.13.7

ingress-nginx 0 < 1.14.3

References

https://github.com/kubernetes/kubernetes/issues/136677

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.