{"id":"CVE-2026-66788","revision":"c2181e0261cd471cace83f7f781548b5","records":[{"revision":"c2181e0261cd471cace83f7f781548b5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-66788","aliases":[],"title":"Lighthouse: lighthouse: arbitrary namespace injection via attacker-controlled broker label","description":"A flaw was found in Lighthouse. A remote attacker, by compromising a spoke cluster, can exploit a vulnerability where the destination namespace for resource injection is derived from an attacker-controlled label or annotation on the broker object. This allows the attacker to inject unauthorized EndpointSlices and ServiceImports into any namespace on peer clusters, including critical system namespaces like kube-system and openshift-*. This could lead to privilege escalation or other forms of system compromise within the cluster.","state":0,"publishedAt":"2026-08-20T18:15:37.408+00:00","modifiedAt":"2026-10-19T17:02:26.651+00:00","affected":[{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"rhacm2/lighthouse-agent-rhel9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Advanced Cluster Management for Kubernetes 2.16\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"rhacm2/lighthouse-agent-rhel9\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1790670439\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:acm:2.16::el9\"\n                    ]\n                }"},{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"rhacm2/lighthouse-coredns-rhel9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Advanced Cluster Management for Kubernetes 2.16\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"rhacm2/lighthouse-coredns-rhel9\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1790670231\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:acm:2.16::el9\"\n                    ]\n                }"},{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"rhacm2/subctl-rhel9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Advanced Cluster Management for Kubernetes 2.16\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"rhacm2/subctl-rhel9\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1790670243\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:acm:2.16::el9\"\n                    ]\n                }"},{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"rhacm2/submariner-rhel9-operator","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Advanced Cluster Management for Kubernetes 2.16\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"rhacm2/submariner-rhel9-operator\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1790670912\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:acm:2.16::el9\"\n                    ]\n                }"},{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"rhacm2/lighthouse-agent-rhel9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Advanced Cluster Management for Kubernetes 2.17\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"rhacm2/lighthouse-agent-rhel9\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1788023916\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:acm:2.17::el9\"\n                    ]\n                }"},{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"rhacm2/lighthouse-coredns-rhel9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Advanced Cluster Management for Kubernetes 2.17\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"rhacm2/lighthouse-coredns-rhel9\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1788023940\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:acm:2.17::el9\"\n                    ]\n                }"},{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"rhacm2/subctl-rhel9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Advanced Cluster Management for Kubernetes 2.17\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"rhacm2/subctl-rhel9\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1788105072\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:acm:2.17::el9\"\n                    ]\n                }"},{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"rhacm2/submariner-rhel9-operator","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Advanced Cluster Management for Kubernetes 2.17\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"rhacm2/submariner-rhel9-operator\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1788073481\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:acm:2.17::el9\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H","score":9.9,"severity":"CRITICAL"}],"references":["https://access.redhat.com/errata/RHSA-2026:63016","https://access.redhat.com/errata/RHSA-2026:85227","https://access.redhat.com/security/cve/CVE-2026-66788","https://bugzilla.redhat.com/show_bug.cgi?id=2507533"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-66788","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-66788","identifiers":["CVE-2026-66788"]},"retained":false,"historicalAffected":[]}],"coverage":[]}