ConsulGHSA-ccw8-7688-vqx4
HashiCorp Consul Privilege Escalation Vulnerability
High8.8CVE-2021-37219 · Published Sep 8, 2021 · updated Sep 10, 2026
HashiCorp Consul and Consul Enterprise 1.10.1 Raft RPC layer allows non-server agents with a valid certificate signed by the same CA to access server-only functionality, enabling privilege escalation. Fixed in 1.8.15, 1.9.9 and 1.10.2.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| github.com/hashicorp/consul Go | >= 1.10.1, < 1.10.2 | 1.10.2 |
| >= 1.9.0, < 1.9.9 | 1.9.9 | |
| < 1.8.15 | 1.8.15 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-295
- Also known as
- BIT-consul-2021-37219, CVE-2021-37219, GO-2022-0593
- nvd.nist.gov/vuln/detail/CVE-2021-37219
- github.com/hashicorp/consul/pull/10925
- github.com/hashicorp/consul/commit/3357e57dac9aadabd476f7a14973e47f003c4cf0
- github.com/hashicorp/consul/commit/473edd1764b6739e2e4610ea5dede4c2bc6009d1
- github.com/hashicorp/consul/commit/ccf8eb1947357434eb6e66303ddab79f4c9d4103
- discuss.hashicorp.com/t/hcsec-2021-22-consul-raft-rpc-privilege-escalation/29024
- github.com/hashicorp/consul
- security.gentoo.org/glsa/202207-01
- www.hashicorp.com/blog/category/consul
More Consul advisories
All Consul| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 82021 | Consul: missing authorization Medium6.5Sep 8, 2021 | Medium6.5 | 1.8.15+2 more |
| Jul 282021 | Incorrect Authorization in HashiCorp ConsulMedium5.3Jul 28, 2021 | Medium5.3 | 1.6.3 |
| Jul 192021 | HashiCorp Consul L7 deny intention results in an allow actionHigh7.5Jul 19, 2021 | High7.5 | 1.10.1 |
| Jul 192021 | Hashicorp Consul Missing SSL Certificate ValidationHigh7.5Jul 19, 2021 | High7.5 | 1.10.1 |
| Jun 232021 | Incorrect Permission Assignment for Critical Resource in Hashicorp ConsulMedium5.3Jun 23, 2021 | Medium5.3 | 1.6.6+1 more |
| May 182021 | Allocation of Resources Without Limits or Throttling in Hashicorp ConsulHigh7.5May 18, 2021 | High7.5 | 1.6.6+1 more |