Advisoriesby IbisConsulGHSA-7g3r-8c6v-hfmr
Consul key/value endpoint is vulnerable to denial of service
Fix: upgrade to 1.22.0 or later
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| github.com/hashicorp/consul Go | < 1.22.0 | 1.22.0 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-770
- Also known as
- BIT-consul-2025-11374, CVE-2025-11374, GO-2025-4081
- nvd.nist.gov/vuln/detail/CVE-2025-11374
- github.com/hashicorp/consul/pull/22916
- github.com/hashicorp/consul/commit/72a358cd02533477536ad4bd2b781f520fa7fac6
- discuss.hashicorp.com/t/hcsec-2025-29-consuls-kv-endpoint-is-vulnerable-to-denial-of-service/76724
- github.com/hashicorp/consul
- github.com/hashicorp/consul/releases/tag/v1.22.0
- pkg.go.dev/vuln/GO-2025-4081
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