Unbounded Cache Growth in Consul Connect CA Roots (1.2.02.0.2)
CVE-2026-19015 Published on August 7, 2026
Uncontrolled resource consumption in the Consul Connect CA roots endpoint
Consul Community Edition and Consul Enterprise 1.2.0 through 2.0.2 are vulnerable to an uncontrolled resource consumption issue in the Connect CA roots endpoint that may allow a remote caller to grow the agent's Connect CA roots cache without bound, defeating the operator's cache-disable configuration. This vulnerability, CVE-2026-19015, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Weakness Type
Allocation of Resources Without Limits or Throttling
The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
Products Associated with CVE-2026-19015
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Affected Versions
HashiCorp Consul:- Version 1.2.0 and below 2.0.3 is affected.
- Version 1.2.0 and below 2.0.3 is affected.