CVE-2026-105626 — HIGH (7.5)

Vulnerability Description

HashiCorp Consul and Consul Enterprise are vulnerable to a denial of service in the HTTP API that may allow an unauthenticated attacker to exhaust memory on a Consul agent. This vulnerability (CVE-2026-105626) is fixed in Consul Community Edition 2.1.0 and Consul Enterprise 2.1.0 and 1.21.19.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-770

References

https://discuss.hashicorp.com/t/hcsec-2026-48-consul-vulnerable-to-a-denial-of-s

FAQ

What is CVE-2026-105626?

CVE-2026-105626 is a vulnerability with a CVSS score of 7.5 (HIGH). HashiCorp Consul and Consul Enterprise are vulnerable to a denial of service in the HTTP API that may allow an unauthenticated attacker to exhaust memory on a Consul agent. This vulnerability (CVE-202...

How severe is CVE-2026-105626?

CVE-2026-105626 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-105626?

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