CVE-2025-11374
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductHashicorp Consul
PublishedOct 28, 2025
First seenOct 28, 2025
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- hashicorp consul1.18.12, 1.22.0, 1.20.8, 1.21.6 or later
- github.com/hashicorp/consul1.22.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| hashicorp consul | v < 1.18.12, v < 1.22.0, 1.19.0 ≤ v < 1.20.8, 1.21.0 ≤ v < 1.21.6 | 1.18.12, 1.22.0, 1.20.8, 1.21.6 |
| github.com/hashicorp/consulGo | v < 1.22.0 | 1.22.0 |
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