{"id":"CVE-2025-1097","aliases":["GHSA-823x-fv5p-h7hw","GO-2025-3565"],"title":"ngress-nginx controller - configuration injection via unsanitized auth-tls-match-cn annotation","summary":"ngress-nginx controller - configuration injection via unsanitized auth-tls-match-cn annotation","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"ingress-nginx","product":"k8s.io/ingress-nginx","ecosystem":"go","affected":["k8s.io/ingress-nginx < 1.11.5","k8s.io/ingress-nginx >= 1.12.0-beta.0, < 1.12.1"],"patched":["k8s.io/ingress-nginx 1.11.5","k8s.io/ingress-nginx 1.12.1"],"published":"2025-03-25","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:49:48.411809133Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-823x-fv5p-h7hw","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-1097"},{"url":"https://github.com/kubernetes/kubernetes/issues/131007"},{"url":"https://github.com/kubernetes/ingress-nginx"},{"url":"https://github.com/kubernetes/ingress-nginx/releases/tag/controller-v1.11.5"},{"url":"https://github.com/kubernetes/ingress-nginx/releases/tag/controller-v1.12.1"},{"url":"https://groups.google.com/g/kubernetes-security-announce/c/2qa9DFtN0cQ"},{"url":"https://security.netapp.com/advisory/ntap-20250328-0008"}],"tags":["osv","go","exploit-available"],"epss":0.35534,"epssPercentile":0.98426,"exploits":{"exploitdb":true,"github":2,"githubRepos":["https://github.com/hakaioffsec/IngressNightmare-PoC","https://github.com/lufeirider/IngressNightmare-PoC"],"nuclei":["CVE-2025-1097"],"checkedAt":"2026-09-21T15:27:07.644Z"},"exploitAvailable":true,"ingestedAt":"2026-09-12T03:13:01.765Z","slug":"CVE-2025-1097","body":"## Overview\n\nA security issue was discovered in [ingress-nginx](https://github.com/kubernetes/ingress-nginx) where the `auth-tls-match-cn` 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.)\n\n## Affected packages\n\n- `k8s.io/ingress-nginx < 1.11.5`\n- `k8s.io/ingress-nginx >= 1.12.0-beta.0, < 1.12.1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `k8s.io/ingress-nginx 1.11.5`\n- `k8s.io/ingress-nginx 1.12.1`","depth":"midnight","depthScore":68,"depthScoreParts":{"impact":48.4,"likelihood":7.1,"exploitation":12,"ransomware":0},"changes":[]}