CVE-2026-105608 HIGH

CVE-2026-105608: Consul vulnerable to an authorization bypass in service mesh registration

Vendor Hashicorp
Product Consul
Weakness CWE-178
Published October 26, 2026
Last update October 26, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 26, 2026 CVE published
October 26, 2026 Record updated