{"id":"CVE-2026-18676","revision":"45ad29d998094e709eaab5cb476da392","records":[{"revision":"45ad29d998094e709eaab5cb476da392","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-18676","aliases":[],"title":"Kong Mesh: default control plane config leaks the admin token cross-origin via a CORS wildcard and localhost admin","description":"The default kuma-cp configuration in Kong Mesh reveals the admin bootstrap token and signing keys to any webpage the operator visits while the control plane is reachable from their browser.\u00A0Due to a CORS misconfiguration a cross-origin fetch() from a malicious page returns the admin JWT and signing material.","state":0,"publishedAt":"2026-08-12T18:42:38.843+00:00","modifiedAt":"2026-08-13T14:50:43.069+00:00","affected":[{"ecosystem":"Vendor product","name":"Kong Mesh","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Kong Inc.\",\n                    \"product\": \"Kong Mesh\",\n                    \"platforms\": [\n                        \"Linux\"\n                    ],\n                    \"modules\": [\n                        \"kuma-cp\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.7.25\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2.8.0\",\n                            \"lessThan\": \"2.9.15\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2.10.0\",\n                            \"lessThan\": \"2.11.13\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2.12.0\",\n                            \"lessThan\": \"2.12.10\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2.13.0\",\n                            \"lessThan\": \"2.13.5\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","score":5.1,"severity":"MEDIUM"}],"references":["https://github.com/kumahq/kuma/security/advisories/GHSA-3vcp-chfh-f6r2","https://github.com/kumahq/kuma/pull/16416","https://github.com/kumahq/kuma/pull/16423","https://github.com/kumahq/kuma/pull/16424","https://github.com/kumahq/kuma/pull/16425","https://github.com/kumahq/kuma/pull/16426","https://github.com/kumahq/kuma/pull/16427","https://developer.konghq.com/mesh/changelog/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-18676","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-18676","identifiers":["CVE-2026-18676"]},"retained":false,"historicalAffected":[]}],"coverage":[]}