{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-18673",
        "assignerOrgId": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb",
        "state": "PUBLISHED",
        "assignerShortName": "Kong",
        "dateReserved": "2026-08-03T15:18:30.454Z",
        "datePublished": "2026-08-12T18:20:33.205Z",
        "dateUpdated": "2026-08-13T14:54:00.482Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb",
                "shortName": "Kong",
                "dateUpdated": "2026-08-12T18:20:33.205Z"
            },
            "title": "Kong Mesh: the kuma-dp readiness service exposes the Envoy admin API without authentication",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-200",
                            "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-306",
                            "description": "CWE-306 Missing Authentication for Critical Function",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "Information Disclosure"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Kong Inc.",
                    "product": "Kong Mesh",
                    "platforms": [
                        "Linux"
                    ],
                    "modules": [
                        "kuma-dp"
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2.14.0",
                            "lessThan": "2.14.2",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "<p>When <code>kuma-dp</code> 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.</p><p>An 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.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/kumahq/kuma/security/advisories/GHSA-r9pv-x3pm-4r2w",
                    "name": "Upstream advisory GHSA-r9pv-x3pm-4r2w",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://github.com/kumahq/kuma/pull/17317",
                    "name": "kumahq/kuma#17317 (master)",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/kumahq/kuma/pull/17418",
                    "name": "kumahq/kuma#17418 (release-2.14 backport)",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://developer.konghq.com/mesh/changelog/",
                    "name": "Kong Product Security Advisories",
                    "tags": [
                        "vendor-advisory"
                    ]
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "attackVector": "ADJACENT",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "LOW",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "LOW",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.3,
                        "vectorString": "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"
                    }
                }
            ],
            "configurations": [
                {
                    "lang": "en",
                    "value": "You are affected if you run kuma-dp on the 2.14 line with the Envoy admin API on a Unix domain socket (the default) and TCP port 9902 is reachable from the pod or cluster network.\n\n\n\nYou are not affected if:\n\n  *  You run a release line before 2.14. There the readiness service exposes only /ready.\n  *  Port 9902 is not reachable by untrusted workloads.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "<p>You are affected if you run <code>kuma-dp</code> on the 2.14 line with the Envoy admin API on a Unix domain socket (the default) and TCP port 9902 is reachable from the pod or cluster network.</p><p>You are not affected if:</p><ul><li>You run a release line before 2.14. There the readiness service exposes only <code>/ready</code>.</li><li>Port 9902 is not reachable by untrusted workloads.</li></ul>"
                        }
                    ]
                }
            ],
            "workarounds": [
                {
                    "lang": "en",
                    "value": "Restrict network access to port 9902 to trusted monitoring only, for example with a Kubernetes NetworkPolicy.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "<p>Restrict network access to port 9902 to trusted monitoring only, for example with a Kubernetes NetworkPolicy.</p>"
                        }
                    ]
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Upgrade to Kong Mesh 2.14.2. In patched versions the readiness reporter serves only /ready; the Envoy admin API stays on the Unix domain socket, which is not reachable over the pod network.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "<p>Upgrade to Kong Mesh 2.14.2. In patched versions the readiness reporter serves only <code>/ready</code>; the Envoy admin API stays on the Unix domain socket, which is not reachable over the pod network.</p>"
                        }
                    ]
                }
            ],
            "timeline": [
                {
                    "time": "2026-08-01T16:58:00.000Z",
                    "lang": "en",
                    "value": "Kong Mesh 2.14.2 published"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "https://hackerone.com/zoom9797",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-13T14:53:48.881667Z",
                                "id": "CVE-2026-18673",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-13T14:54:00.482Z"
                }
            }
        ]
    }
}