---
id: CVE-2021-32574
aliases:
  - GHSA-25gf-8qrr-g78r
  - BIT-consul-2021-32574
  - GO-2022-0894
title: Hashicorp Consul Missing SSL Certificate Validation
summary: Hashicorp Consul Missing SSL Certificate Validation
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
vendor: hashicorp
product: github.com/hashicorp/consul
ecosystem: go
affected:
  - github.com/hashicorp/consul < 1.10.1
patched:
  - github.com/hashicorp/consul 1.10.1
published: '2021-07-19'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T03:49:15.385322274Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-25gf-8qrr-g78r'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2021-32574'
  - url: >-
      https://discuss.hashicorp.com/t/hcsec-2021-17-consul-s-envoy-tls-configuration-did-not-validate-destination-service-subject-alternative-names/26856
  - url: 'https://github.com/hashicorp/consul/releases/tag/v1.10.1'
  - url: 'https://security.gentoo.org/glsa/202208-09'
  - url: 'https://www.hashicorp.com/blog/category/consul'
tags:
  - osv
  - go
epss: 0.01457
epssPercentile: 0.72353
ingestedAt: '2026-09-12T03:13:01.744Z'
---

## Overview

HashiCorp Consul before 1.10.1 (and Consul Enterprise) has Missing SSL Certificate Validation. xds does not ensure that the Subject Alternative Name of an upstream is validated.

## Affected packages

- `github.com/hashicorp/consul < 1.10.1`

## Remediation

Upgrade to a patched release:

- `github.com/hashicorp/consul 1.10.1`