CVE-2026-19012
Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-476 |
| Vendor | hashicorp |
| Product | consul |
| Published | Aug 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
HashiCorp / Consul
1.18.0 < 2.0.3
HashiCorp / Consul Enterprise
1.18.0 < 2.0.3
References
Credits
This issue was reported to HashiCorp by Erichen.