{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-105765", "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc", "state": "PUBLISHED", "assignerShortName": "HashiCorp", "dateReserved": "2026-10-05T19:12:39.414Z", "datePublished": "2026-10-26T17:42:36.012Z", "dateUpdated": "2026-10-26T18:12:14.351Z"}, "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": "1.17.0", "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": "1.21.19", "status": "unaffected"}], "lessThan": "2.1.0", "status": "affected", "version": "1.17.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "value": "This issue was reported to HashiCorp by Tomas Castillo (https://github.com/muertostech)."}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>HashiCorp Consul and Consul Enterprise 1.17.0 up to 2.0.4 are vulnerable to an authorization bypass in the agent's service mesh leaf certificate API that may allow an attacker without a valid ACL token to retrieve a cached service leaf certificate and its private key. This vulnerability (CVE-2026-105765) 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 1.17.0 up to 2.0.4 are vulnerable to an authorization bypass in the agent's service mesh leaf certificate API that may allow an attacker without a valid ACL token to retrieve a cached service leaf certificate and its private key. This vulnerability (CVE-2026-105765) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19."}], "impacts": [{"capecId": "CAPEC-1", "descriptions": [{"lang": "en", "value": "CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs"}]}], "metrics": [{"cvssV3_1": {"baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "description": "CWE-862: Missing Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc", "shortName": "HashiCorp", "dateUpdated": "2026-10-26T18:12:14.351Z"}, "references": [{"url": "https://discuss.hashicorp.com/t/hcsec-2026-46-consul-vulnerable-to-an-authorization-bypass-in-the-agents-service-mesh-leaf-certificate-api/77911"}], "source": {"advisory": "HCSEC-2026-46", "discovery": "EXTERNAL"}, "title": "Consul vulnerable to an authorization bypass in the agent's service mesh leaf certificate API"}}}

{}

{"affected": [{"affectedData": [{"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": "1.17.0", "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": "1.21.19", "status": "unaffected"}], "lessThan": "2.1.0", "status": "affected", "version": "1.17.0", "versionType": "semver"}]}], "source": "security@hashicorp.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "HashiCorp Consul and Consul Enterprise 1.17.0 up to 2.0.4 are vulnerable to an authorization bypass in the agent's service mesh leaf certificate API that may allow an attacker without a valid ACL token to retrieve a cached service leaf certificate and its private key. This vulnerability (CVE-2026-105765) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19."}], "id": "CVE-2026-105765", "lastModified": "2026-10-26T18:34:17.050", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security@hashicorp.com", "type": "Secondary"}]}, "published": "2026-10-26T18:17:28.863", "references": [{"source": "security@hashicorp.com", "url": "https://discuss.hashicorp.com/t/hcsec-2026-46-consul-vulnerable-to-an-authorization-bypass-in-the-agents-service-mesh-leaf-certificate-api/77911"}], "sourceIdentifier": "security@hashicorp.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security@hashicorp.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["64_bit", "32_bit", "x86", "arm", "macos", "windows", "linux"], "status": "affected", "versions": {"scheme": "semver", "value": "[1.17.0,2.1.0)"}}], "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": "[1.17.0,1.21.19)"}}, {"platform": ["64_bit", "32_bit", "x86", "arm", "macos", "windows", "linux"], "status": "unaffected", "versions": {"scheme": "semver", "value": "[1.21.19,2.1.0)"}}], "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": "2026-10-26T18:30:14.332507+00:00", "updated": "2026-10-26T18:30:14.332564+00:00", "vendors": ["hashicorp", "hashicorp$PRODUCT$consul", "hashicorp$PRODUCT$consul_enterprise"]}