{"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"}}]}}