{"id":"CVE-2026-94197","revision":"01ef9df611b64317a2e8276af6150914","records":[{"revision":"01ef9df611b64317a2e8276af6150914","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-94197","aliases":[],"title":"NGINX Ingress Controller vulnerability","description":"An authentication and authorization bypass vulnerability exists in F5 NGINX Kubernetes Ingress Controller (NIC) when configured with the `ExternalAuth` policy or Ingress external authentication. Client-supplied X-Forwarded-Prefix, X-Forwarded-URI, X-Original-URI, and X-Forwarded-Method routing and method headers are forwarded unsanitized into the internal authentication subrequest (handled by the NGINX auth_request directive). As a result, an unauthenticated, remote attacker may spoof request attributes evaluated by the external authentication provider. \n\nImpact:\nThis vulnerability may allow remote attackers \n\nunauthenticated\n\n access to protected \n\npaths. There is no control plane exposure; this is a data plane issue only.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","state":0,"publishedAt":"2026-10-14T14:40:28.582+00:00","modifiedAt":"2026-10-15T16:43:46.77+00:00","affected":[{"ecosystem":"Vendor product","name":"NGINX Ingress Controller","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unknown\",\n                    \"modules\": [\n                        \"ExternalAuth\"\n                    ],\n                    \"product\": \"NGINX Ingress Controller\",\n                    \"vendor\": \"F5\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"5.7.0\",\n                            \"status\": \"affected\",\n                            \"version\": \"5.5.0\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5,"severity":"HIGH"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"}],"references":["https://my.f5.com/manage/s/article/K000162611"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-94197","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-94197","identifiers":["CVE-2026-94197"]},"retained":false,"historicalAffected":[]}],"coverage":[]}