CVE-2023-2816: Hashicorp Consul

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Consul and Consul Enterprise allowed any user with service:write permissions to use Envoy extensions configured via service-defaults to patch remote proxy instances that target the configured service, regardless of whether the user has permission to modify the service(s) corresponding to those modified proxies.

Affected products

• Hashicorp Consul: from 1.15.0, before 1.15.3 (fixed in 1.15.3)

Published 2023-06-02. Last modified 2026-06-17.