{"id":"CVE-2026-18673","summary":"Kong Mesh: the kuma-dp readiness service exposes the Envoy admin API without authentication","details":"When kuma-dp is configured with the Envoy admin API on a Unix domain socket, which is the default, its readiness service on TCP port 9902 - bound to all interfaces - forwards almost the entire Envoy admin API to any caller that can reach the port, with no authentication.\n\n\n\nAn attacker with network access to a data plane's port 9902, for example another pod on the cluster network, can read Envoy and data plane configuration without credentials: config dumps, cluster and listener lists, stats, and the mesh trust bundle. Exposure is read-only - destructive Envoy admin actions are blocked and private keys are not exposed.","aliases":["GHSA-r9pv-x3pm-4r2w"],"modified":"2026-09-02T03:31:02.354135777Z","published":"2026-08-12T18:20:33.205Z","database_specific":{"cna_assigner":"Kong","cwe_ids":["CWE-200","CWE-306"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18673.json"},"references":[{"type":"ADVISORY","url":"https://developer.konghq.com/mesh/changelog/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18673.json"},{"type":"ADVISORY","url":"https://github.com/kumahq/kuma/security/advisories/GHSA-r9pv-x3pm-4r2w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18673"},{"type":"FIX","url":"https://github.com/kumahq/kuma/pull/17317"},{"type":"FIX","url":"https://github.com/kumahq/kuma/pull/17418"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/kumahq/kuma","events":[{"introduced":"51c6d3819be75d9587942242cdec709bc9934321"},{"fixed":"a82706b54052df26826f33a8421145572689e6b5"}],"database_specific":{"extracted_events":[{"introduced":"2.14.0"},{"fixed":"2.14.2"}],"source":"AFFECTED_FIELD"}}],"versions":["v2.14.1","v2.14.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18673.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"}]}