Consul’s KV endpoint is vulnerable to denial of service

6.5 / 10

MEDIUM

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

Description

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.

Basic Information

ID CVE-2025-11374

Source HashiCorp

Published Oct 28, 2025 at 20:19

Modified Oct 28, 2025 at 20:36

Affected Product

Vendor HashiCorp

Product Consul

Affected Versions HashiCorp Consul 0
HashiCorp Consul Enterprise 1.22.0

CWE Classification

CWE-770

References

discuss.hashicorp.com /t/hcsec-2025-29-consuls-kv-endpoint-is-vulnerable-to-denial-of-service/76724

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Consul’s KV endpoint is vulnerable to denial of service_CVE-2025-11374