{"schema_version":"1.7.3","id":"GHSA-9h3p-52vh-959w","published":"2026-02-04T00:30:29Z","modified":"2026-06-19T12:44:19.430563811Z","aliases":["CVE-2026-1580","GO-2026-4423"],"related":["CGA-6h8j-hm63-v2v2"],"summary":"ingress-nginx's `nginx.ingress.kubernetes.io/auth-method` Ingress annotation can be used to inject configuration into nginx","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.)","affected":[{"package":{"name":"k8s.io/ingress-nginx","ecosystem":"Go","purl":"pkg:golang/k8s.io/ingress-nginx"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.13.7"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-9h3p-52vh-959w/GHSA-9h3p-52vh-959w.json"}},{"package":{"name":"k8s.io/ingress-nginx","ecosystem":"Go","purl":"pkg:golang/k8s.io/ingress-nginx"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.14.0"},{"fixed":"1.14.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-9h3p-52vh-959w/GHSA-9h3p-52vh-959w.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1580"},{"type":"WEB","url":"https://github.com/kubernetes/kubernetes/issues/136677"},{"type":"PACKAGE","url":"https://github.com/kubernetes/ingress-nginx"}],"database_specific":{"cwe_ids":["CWE-20"],"github_reviewed":true,"github_reviewed_at":"2026-02-04T20:06:09Z","nvd_published_at":"2026-02-03T23:16:06Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}