Uncontrolled Resource Consumption in Consul Community and Enterprise Products
CVE-2026-19014

4.3MEDIUM

Key Information:

Vendor

Hashicorp
Status
Consul
Consul Enterprise
Vendor
CVE Published:
7 August 2026

What is CVE-2026-19014?

A resource consumption issue exists in the Connect authorization endpoint of Consul Community Edition and Enterprise versions ranging from 1.17.0 to 2.0.2. This vulnerability permits a malefactor to exploit the intention-match cache, leading to excessive resource usage that can compromise the intended cache-disable configurations set by operators. The issue has been resolved in Consul versions 2.0.3, 1.21.17, and 1.22.11.

Affected Version(s)

Consul 64 bit 1.17.0 < 2.0.3

Consul Enterprise 64 bit 1.17.0 < 2.0.3

References

https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vu...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was reported to HashiCorp by Erichen.
.