BaseFortify

Publication date: 2025-10-28

Last updated on: 2025-12-22

Assigner: HashiCorp Inc.

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-28

Last Modified

2025-12-22

Generated

2026-07-06

AI Q&A

2025-10-28

EPSS Evaluated

2026-07-05

NVD

CVE-2025-11374

Affected Vendors & Products

Vendor	Product	Version / Range
hashicorp	consul	to 1.18.12 (exc)
hashicorp	consul	to 1.22.0 (exc)
hashicorp	consul	From 1.19.0 (inc) to 1.20.8 (exc)
hashicorp	consul	From 1.21.0 (inc) to 1.21.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

This vulnerability in Consul and Consul Enterprise involves the key/value endpoint improperly validating the Content Length header, which can be exploited to cause a denial of service (DoS).

Impact Analysis

The vulnerability can lead to a denial of service (DoS) condition, making the affected Consul service unavailable or unresponsive, potentially disrupting operations that depend on it.

Mitigation Strategies

Upgrade Consul Community Edition to version 1.22.0 or later, or Consul Enterprise to versions 1.22.0, 1.21.6, 1.20.8, or 1.18.12 or later, as these versions contain the fix for this vulnerability.

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