CVE-2021-37218

Name: CVE-2021-37218
Creator: NVD / NIST
Published: 2021-09-07T12:15:07.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2021-37218 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. HashiCorp Nomad and Nomad Enterprise 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 1.0.10 and 1.1.4.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

HashiCorp Nomad and Nomad Enterprise 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 1.0.10 and 1.1.4.

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

0.67%

47.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Hashicorp	Nomad	< 1.0.10
Hashicorp	Nomad	<= 1.0.10
Hashicorp	Nomad	>= 1.1.1, < 1.1.4

References

https://discuss.hashicorp.com/t/hcsec-2021-21-nomad-raft-rpc-privilege-escalation/29023Vendor Advisory
https://www.hashicorp.com/blog/category/nomadProduct, Vendor Advisory
https://discuss.hashicorp.com/t/hcsec-2021-21-nomad-raft-rpc-privilege-escalation/29023Vendor Advisory
https://www.hashicorp.com/blog/category/nomadProduct, Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-37218?

How severe is CVE-2021-37218?

CVE-2021-37218 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37218?

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-2021-37218?

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

Scan your code now

Source: NVD / NIST