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.)
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-9h3p-52vh-959w ingress-nginx's `nginx.ingress.kubernetes.io/auth-method` Ingress annotation can be used to inject configuration into nginx
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: kubernetes

Published:

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

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-04T12:06:03Z

Weaknesses