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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-7g3r-8c6v-hfmr Consul key/value endpoint is vulnerable to denial of service
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 29 Oct 2025 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Hashicorp
Hashicorp consul
Vendors & Products Hashicorp
Hashicorp consul

Tue, 28 Oct 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 28 Oct 2025 20:45:00 +0000

Type Values Removed Values Added
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.
Title Consul's KV endpoint is vulnerable to denial of service
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: HashiCorp

Published:

Updated: 2025-10-28T20:36:06.085Z

Reserved: 2025-10-06T15:34:09.965Z

Link: CVE-2025-11374

cve-icon Vulnrichment

Updated: 2025-10-28T20:36:00.377Z

cve-icon NVD

Status : Received

Published: 2025-10-28T21:15:37.300

Modified: 2025-10-28T21:15:37.300

Link: CVE-2025-11374

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-29T10:57:39Z