5.3Medium
CVE-2026-19012Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path
Description
Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a service-router configuration entry that causes the agent to exit unexpectedly. This vulnerability, CVE-2026-19012, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.
Weakness (CWE):
CWE-476
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| HashiCorp | Consul | 1.18.0 – < 2.0.3 | |
| HashiCorp | Consul Enterprise | 1.18.0 – < 2.0.3 |