{"id":"BIT-nginx-ingress-controller-2026-1580","summary":"ingress-nginx auth-method nginx configuration injection","details":"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access all Secrets cluster-wide.)","modified":"2026-05-20T08:11:53.551876964Z","published":"2026-02-16T15:57:26.356Z","withdrawn":"2026-05-20T08:00:05.848137687Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:go:*:*"]},"references":[{"type":"WEB","url":"https://github.com/kubernetes/kubernetes/issues/136677"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1580"}],"affected":[{"package":{"name":"nginx-ingress-controller","ecosystem":"Bitnami","purl":"pkg:bitnami/nginx-ingress-controller"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.13.7"},{"introduced":"1.14.0"},{"fixed":"1.14.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/nginx-ingress-controller/BIT-nginx-ingress-controller-2026-1580.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.7.3"}