CVE-2026-115804 — MEDIUM (6.4)

Vulnerability Description

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.

CVSS Score

6.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-639

References

https://discuss.hashicorp.com/t/hcsec-2026-49-consul-vulnerable-to-an-authorizat

FAQ

What is CVE-2026-115804?

CVE-2026-115804 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 ...

How severe is CVE-2026-115804?

CVE-2026-115804 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-115804?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.