CVE-2025-11375
Medium
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.
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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