CVE-2021-37219

Name: CVE-2021-37219
Creator: NVD / NIST
Published: 2021-09-07T12:15:07.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.19%

Last modified Jun 17, 2026

CVE-2021-37219 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.19% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.19%

64.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Hashicorp	Consul	< 1.8.15
Hashicorp	Consul	>= 1.9.0, < 1.9.9
Hashicorp	Consul	>= 1.10.0, < 1.10.2

References

https://discuss.hashicorp.com/t/hcsec-2021-22-consul-raft-rpc-privilege-escalation/29024Vendor Advisory
https://security.gentoo.org/glsa/202207-01Third Party Advisory
https://www.hashicorp.com/blog/category/consulProduct, Vendor Advisory
https://discuss.hashicorp.com/t/hcsec-2021-22-consul-raft-rpc-privilege-escalation/29024Vendor Advisory
https://security.gentoo.org/glsa/202207-01Third Party Advisory
https://www.hashicorp.com/blog/category/consulProduct, Vendor Advisory

Timeline

Published: Sep 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-37219?

How severe is CVE-2021-37219?

CVE-2021-37219 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37219?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-37219?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST