CVE-2026-15970: Hashicorp Consul

Medium severity, CVSS 4.2. EPSS: 0.2% chance of exploitation in the next 30 days.

Consul Community Edition and Consul Enterprise 1.20.1 through 2.0.2 are vulnerable to an L7 intention authorization bypass when a service proxy is configured with a custom public listener. An authenticated mesh workload may reach HTTP paths that are blocked by a path-based deny intention. This vulnerability, CVE-2026-15970, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

Affected products

• Hashicorp Consul: from 1.20.1, before 2.0.3 (fixed in 2.0.3)
• Hashicorp Consul Enterprise: from 1.20.1, before 2.0.3 (fixed in 2.0.3)

Published 2026-08-07. Last modified 2026-08-28.