CVE-2026-115804

MEDIUM 6.4

Consul vulnerable to an authorization bypass in health check registration

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

HashiCorp Consul and Consul Enterprise are vulnerable to an authorization bypass in health check registration that may allow an authenticated user to modify health checks belonging to another service on the same node. This vulnerability (CVE-2026-115804) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19.

CWE	CWE-639
Vendor	hashicorp
Product	consul
Published	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

HashiCorp / Consul

0.7.2 < 2.1.0

HashiCorp / Consul Enterprise

0.7.2 < 2.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

discuss.hashicorp.com: https://discuss.hashicorp.com/t/hcsec-2026-49-consul-vulnerable-to-an-authorization-bypass-in-health-check-registration/77914

Credits

This issue was reported to HashiCorp by Immad Sahin of ZeroTrail.