CVE-2021-37219: Hashicorp Consul

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

HashiCorp Consul and Consul Enterprise 1.10.1 Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.8.15, 1.9.9 and 1.10.2.

Affected products

• Hashicorp Consul: before 1.8.15 (fixed in 1.8.15); from 1.9.0, before 1.9.9 (fixed in 1.9.9); from 1.10.0, before 1.10.2 (fixed in 1.10.2)

Published 2021-09-07. Last modified 2026-06-17.