CVE-2021-32574

Name: CVE-2021-32574
Creator: NVD / NIST
Published: 2021-07-17T18:15:07.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.46%

Last modified Jun 17, 2026

CVE-2021-32574 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. HashiCorp Consul and Consul Enterprise 1.3.0 through 1.10.0 Envoy proxy TLS configuration does not validate destination service identity in the encoded subject alternative name. Fixed in 1.8.14, 1.9.8, and 1.10.1.. EPSS estimates a 1.46% chance of exploitation in the next 30 days.

Description

HashiCorp Consul and Consul Enterprise 1.3.0 through 1.10.0 Envoy proxy TLS configuration does not validate destination service identity in the encoded subject alternative name. Fixed in 1.8.14, 1.9.8, and 1.10.1.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.46%

70.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Hashicorp	Consul	>= 1.3.0, < 1.8.14
Hashicorp	Consul	>= 1.9.0, < 1.9.8
Hashicorp	Consul	>= 1.10.0, < 1.10.1

References

https://discuss.hashicorp.com/t/hcsec-2021-17-consul-s-envoy-tls-configuration-did-not-validate-destination-service-subject-alternative-names/26856Vendor Advisory
https://github.com/hashicorp/consul/releases/tag/v1.10.1Third Party Advisory
https://security.gentoo.org/glsa/202208-09Third Party Advisory
https://www.hashicorp.com/blog/category/consulVendor Advisory
https://discuss.hashicorp.com/t/hcsec-2021-17-consul-s-envoy-tls-configuration-did-not-validate-destination-service-subject-alternative-names/26856Vendor Advisory
https://github.com/hashicorp/consul/releases/tag/v1.10.1Third Party Advisory
https://security.gentoo.org/glsa/202208-09Third Party Advisory
https://www.hashicorp.com/blog/category/consulVendor Advisory

Timeline

Published: Jul 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32574?

How severe is CVE-2021-32574?

CVE-2021-32574 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.46% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32574?

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-2021-32574?

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

Scan your code now

Source: NVD / NIST