{"id":"CVE-2026-105608","title":"Consul vulnerable to an authorization bypass in service mesh registration","summary":"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 …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-178"],"vendor":"HashiCorp","product":"Consul","affected":["Consul >= 2.0.4 < 2.1.0","consul_enterprise >= 2.0.4 < 2.1.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-26T19:05:41.796579Z"},"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T19:38:29.607Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105608","references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-47-consul-vulnerable-to-an-authorization-bypass-in-service-mesh-registration/77912"}],"tags":["cve.org"],"ingestedAt":"2026-10-26T18:35:51.650Z","epss":0.00452,"epssPercentile":0.39059,"slug":"CVE-2026-105608","body":"## Overview\n\nHashiCorp 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.\n\n## Affected\n\n- `Consul >= 2.0.4 < 2.1.0`\n- `consul_enterprise >= 2.0.4 < 2.1.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}