Security Bulletin: Consul vulnerable to an authorization bypass in the Connect service mesh

Summary Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh that may allow a service to reach a destination it is not authorized to access. When building Envoy RBAC rules to enforce Connect intentions, Consul did not correctly escape certain characte...

CVE-2026-88021

Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh that may allow a service to reach a destination it is not authorized to access. When building Envoy RBAC rules to enforce Connect intentions, Consul did not correctly escape certain characters in...

CVE-2026-88021 Consul vulnerable to an authorization bypass in the Connect service mesh

Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh that may allow a service to reach a destination it is not authorized to access. When building Envoy RBAC rules to enforce Connect intentions, Consul did not correctly escape certain characters in...

EUVD-2026-75700

Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh that may allow a service to reach a destination it is not authorized to access. When building Envoy RBAC rules to enforce Connect intentions, Consul did not correctly escape certain characters in...

CVE-2026-88021

Consul and Consul Enterprise contain an authorization bypass in the Connect service mesh . When generating Envoy RBAC rules to enforce Connect intentions, Consul failed to correctly escape certain characters in service names , namespaces , and partitions , causing the resulting authorization rule...

Consul vulnerable to an authorization bypass in the Connect service mesh

Summary Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh that may allow a service to reach a destination it is not authorized to access. When building Envoy RBAC rules to enforce Connect intentions, Consul did not correctly escape certain characte...

PT-2026-89570

Name of the Vulnerable Software and Affected Versions Consul versions prior to 2.0.4 Consul Enterprise versions prior to 1.21.18 Consul Enterprise versions prior to 1.22.12 Consul Enterprise versions prior to 2.0.4 Description An authorization bypass exists in the Connect service mesh. This occur...

CVE-2026-88021: Incorrect Regular Expression

Consul and Consul Enterprise are vulnerable to an authorization bypass in the Connect service mesh that may allow a service to reach a destination it is not authorized to access. When building Envoy RBAC rules to enforce Connect intentions, Consul did not correctly escape certain characters in...

SUSE CVE-2026-31838

Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a vulnerability in Envoy RBAC header matching could allow authorization policy bypass when policies rely on HTTP headers that may contain multiple values. An attacker could craft requests...