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.

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Deploy the Patch

Affected Version(s)

ingress-nginx 0

ingress-nginx 0 < 1.13.7

ingress-nginx 0 < 1.14.2

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

JSON
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