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CVE-2026-1580

ingress-nginx auth-method nginx configuration injection

CVSS 3.1 8.8 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-1580

Published

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.)

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-1580

Published

ingress-nginx

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "affected",
                    "product": "ingress-nginx",
                    "repo": "https://github.com/kubernetes/ingress-nginx",
                    "vendor": "Kubernetes",
                    "versions": [
                        {
                            "lessThan": "1.13.7",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        },
                        {
                            "lessThan": "1.14.3",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON