CVE-2025-11375

Consul's event endpoint is vulnerable to denial of service

Published Oct 28, 2025 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack of maximum value on the Content Length header. This vulnerability, CVE-2025-11375, 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-qh7p-pfq3-677h Consul event endpoint is vulnerable to denial of service
History
Type Values Removed Values Added
CPEs cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Hashicorp
Hashicorp consul
Vendors & Products Hashicorp
Hashicorp consul
Type Values Removed Values Added
Description Consul and Consul Enterprise’s (“Consul”) event endpoint is vulnerable to denial of service (DoS) due to lack of maximum value on the Content Length header. This vulnerability, CVE-2025-11375, 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 event 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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
HashiCorp
Published
Updated
Dec 9, 2025, 1:37 AM
Reserved
Oct 6, 2025, 3:34 PM
Status
Analyzed
Published
Oct 28, 2025, 9:15 PM
Modified
Oct 18, 2026, 9:10 PM
Severity
Moderate
Public date
Oct 28, 2025, 8:12 PM