{"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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{"affected": [{"configurations": [{"platform": ["64_bit", "32_bit", "x86", "arm", "macos", "windows", "linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.4,2.1.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Consul", "source": "cna", "vendor": "HashiCorp"}, "product": "consul", "vendor": "hashicorp"}, {"configurations": [{"platform": ["64_bit", "32_bit", "x86", "arm", "macos", "windows", "linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.4,2.1.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Consul Enterprise", "source": "cna", "vendor": "HashiCorp"}, "product": "consul_enterprise", "vendor": "hashicorp"}], "created": "2026-10-26T19:30:15.047050+00:00", "updated": "2026-10-26T19:30:15.541269+00:00", "vendors": ["hashicorp", "hashicorp$PRODUCT$consul", "hashicorp$PRODUCT$consul_enterprise"]}