A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-method` 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.)
History

Wed, 04 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 04 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Kubernetes
Kubernetes ingress-nginx
Vendors & Products Kubernetes
Kubernetes ingress-nginx

Tue, 03 Feb 2026 22:45:00 +0000

Type Values Removed Values Added
Description A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-method` 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.)
Title ingress-nginx auth-method nginx configuration injection
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: kubernetes

Published: 2026-02-03T22:16:47.223Z

Updated: 2026-02-04T14:41:17.588Z

Reserved: 2026-01-29T00:06:06.902Z

Link: CVE-2026-1580

cve-icon Vulnrichment

Updated: 2026-02-04T14:41:11.540Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-03T23:16:06.290

Modified: 2026-02-04T16:33:44.537

Link: CVE-2026-1580

cve-icon Redhat

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