UBUNTU-CVE-2026-105608: High severity ubuntu/consul vulnerability

Published Oct 26, 2026
·
Updated

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.

Affected Software

3 affected components
ubuntu/consul*
ubuntu/consul*
ubuntu/consul*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade HashiCorp Consul Community Edition to a version that resolves this vulnerability.

    Fixed in 2.1.0
  2. Upgrade

    Upgrade HashiCorp Consul Enterprise to a version that resolves this vulnerability.

    Fixed in 2.1.0
  3. Upgrade

    Upgrade HashiCorp Consul Enterprise to a version that resolves this vulnerability.

    Fixed in 1.21.19

Event History

Oct 26, 2026
CVE Published
via OSV·06:17 PM
Data Sourced
via OSV·06:17 PM
DescriptionSeverityAffected Software

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