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Vulnerability details: VCID-jfzf-ynb1-23bs
Vulnerability ID VCID-jfzf-ynb1-23bs
Aliases CVE-2021-32574
GHSA-25gf-8qrr-g78r
Summary Hashicorp Consul Missing SSL Certificate Validation 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-295 Improper Certificate Validation
System Score Found at
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
epss 0.00802 https://api.first.org/data/v1/epss?cve=CVE-2021-32574
cvssv3.1 7.5 https://discuss.hashicorp.com/t/hcsec-2021-17-consul-s-envoy-tls-configuration-did-not-validate-destination-service-subject-alternative-names/26856
generic_textual HIGH https://discuss.hashicorp.com/t/hcsec-2021-17-consul-s-envoy-tls-configuration-did-not-validate-destination-service-subject-alternative-names/26856
cvssv3.1 7.5 https://github.com/hashicorp/consul/releases/tag/v1.10.1
generic_textual HIGH https://github.com/hashicorp/consul/releases/tag/v1.10.1
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-32574
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-32574
archlinux Medium https://security.archlinux.org/AVG-2171
cvssv3.1 7.5 https://security.gentoo.org/glsa/202208-09
generic_textual HIGH https://security.gentoo.org/glsa/202208-09
cvssv3.1 7.5 https://www.hashicorp.com/blog/category/consul
generic_textual HIGH https://www.hashicorp.com/blog/category/consul
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-32574
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32574
https://discuss.hashicorp.com/t/hcsec-2021-17-consul-s-envoy-tls-configuration-did-not-validate-destination-service-subject-alternative-names/26856
https://github.com/hashicorp/consul/releases/tag/v1.10.1
https://nvd.nist.gov/vuln/detail/CVE-2021-32574
https://security.gentoo.org/glsa/202208-09
https://www.hashicorp.com/blog/category/consul
991719 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=991719
ASA-202107-69 https://security.archlinux.org/ASA-202107-69
AVG-2171 https://security.archlinux.org/AVG-2171
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://discuss.hashicorp.com/t/hcsec-2021-17-consul-s-envoy-tls-configuration-did-not-validate-destination-service-subject-alternative-names/26856
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/hashicorp/consul/releases/tag/v1.10.1
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-32574
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://security.gentoo.org/glsa/202208-09
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://www.hashicorp.com/blog/category/consul
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.74039
EPSS Score 0.00802
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:02:15.140801+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/07/GHSA-25gf-8qrr-g78r/GHSA-25gf-8qrr-g78r.json 38.0.0