{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-105608",
        "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
        "state": "PUBLISHED",
        "assignerShortName": "HashiCorp",
        "dateReserved": "2026-10-05T16:15:56.816Z",
        "datePublished": "2026-10-26T17:52:33.021Z",
        "dateUpdated": "2026-10-26T19:38:29.607Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "platforms": [
                        "64 bit",
                        "32 bit",
                        "x86",
                        "ARM",
                        "MacOS",
                        "Windows",
                        "Linux"
                    ],
                    "product": "Consul",
                    "repo": "https://github.com/hashicorp/consul",
                    "vendor": "HashiCorp",
                    "versions": [
                        {
                            "lessThan": "2.1.0",
                            "status": "affected",
                            "version": "2.0.4",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "defaultStatus": "unaffected",
                    "platforms": [
                        "64 bit",
                        "32 bit",
                        "x86",
                        "ARM",
                        "MacOS",
                        "Windows",
                        "Linux"
                    ],
                    "product": "Consul Enterprise",
                    "repo": "https://github.com/hashicorp/consul",
                    "vendor": "HashiCorp",
                    "versions": [
                        {
                            "changes": [
                                {
                                    "at": "1.21.18",
                                    "status": "affected"
                                },
                                {
                                    "at": "1.21.19",
                                    "status": "unaffected"
                                },
                                {
                                    "at": "1.22.12",
                                    "status": "affected"
                                }
                            ],
                            "lessThan": "2.1.0",
                            "status": "affected",
                            "version": "2.0.4",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "This issue was reported to HashiCorp by Immad Sahin of ZeroTrail and Yonghwa Lee of Theori."
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>HashiCorp Consul and Consul Enterprise are vulnerable to an authorization bypass in service mesh proxy registration. This may allow a user with service write permission to apply Envoy escape-hatch configuration without the required mesh write permission. This vulnerability (CVE-2026-105608) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19.</p><br/>"
                        }
                    ],
                    "value": "HashiCorp Consul and Consul Enterprise are vulnerable to an authorization bypass in service mesh proxy registration. This may allow a user with service write permission to apply Envoy escape-hatch configuration without the required mesh write permission. This vulnerability (CVE-2026-105608) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-267",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-267: Leverage Alternate Encoding"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "baseScore": 8.8,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-178",
                            "description": "CWE-178: Improper Handling of Case Sensitivity",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
                "shortName": "HashiCorp",
                "dateUpdated": "2026-10-26T17:53:16.484Z"
            },
            "references": [
                {
                    "url": "https://discuss.hashicorp.com/t/hcsec-2026-47-consul-vulnerable-to-an-authorization-bypass-in-service-mesh-registration/77912"
                }
            ],
            "source": {
                "advisory": "HCSEC-2026-47",
                "discovery": "EXTERNAL"
            },
            "title": "Consul vulnerable to an authorization bypass in service mesh registration"
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2026-105608",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-10-26T19:05:41.796579Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-26T19:38:29.607Z"
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}