CVE-2025-11374

Consul and Consul Enterprise’s (“Consul”) key/value endpoint is vulnerable to denial of service (DoS) due to incorrect Content Length header validation. This vulnerability, CVE-2025-11374, is fixed in Consul Community Edition 1.22.0 and Consul Enterprise 1.22.0, 1.21.6, 1.20.8 and 1.18.12.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.hashicorp.com/t/hcsec-2025-29-consuls-kv-endpoint-is-vulnerable-to-denial-of-service/76724	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:hashicorp:consul:::::enterprise:::*
	cpe:2.3:a:hashicorp:consul:::::-:::*
	cpe:2.3:a:hashicorp:consul:::::enterprise:::*
	cpe:2.3:a:hashicorp:consul:::::enterprise:::*

History

18 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) El endpoint de clave/valor de Consul y Consul Enterprise ('Consul') es vulnerable a denegación de servicio (DoS) debido a una validación incorrecta del encabezado Content Length. Esta vulnerabilidad, CVE-2025-11374, está corregida en Consul Community Edition 1.22.0 y Consul Enterprise 1.22.0, 1.21.6, 1.20.8 y 1.18.12.

Information

Published : 2025-10-28 21:15

Updated : 2026-10-18 21:10

NVD link : CVE-2025-11374

Mitre link : CVE-2025-11374

CVE.ORG link : CVE-2025-11374

JSON object : View

Products Affected

hashicorp

consul

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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