{"id":"CVE-2021-32574","aliases":["BIT-consul-2021-32574","DEBIAN-CVE-2021-32574","EUVD-2021-1430","GHSA-25gf-8qrr-g78r","GO-2022-0894","UBUNTU-CVE-2021-32574"],"status":"published","title":"Hashicorp Consul Missing SSL Certificate Validation","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01457,"percentile":0.73718,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2021-07-17T17:28:11Z","modified":"2026-10-20T10:54:41Z","fixes":[{"ecosystem":"Go","package":"github.com/hashicorp/consul","fixed_in":["1.10.1"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"consul","fixed_in":["1.8.14","1.9.8","1.10.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/hashicorp/consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.1"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"consul","ranges":[{"type":"SEMVER","events":[{"introduced":"1.3.0"},{"fixed":"1.8.14"},{"introduced":"1.9.0"},{"fixed":"1.9.8"},{"introduced":"1.10.0"},{"fixed":"1.10.1"}]}]},{"source":"osv","ecosystem":"Debian:11","package":"consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.10.12+dfsg1-1","1.8.7+dfsg1-2","1.8.7+dfsg1-3","1.8.7+dfsg1-4","1.8.7+dfsg1-5","1.8.7+dfsg1-6","1.9.17+dfsg2-1"]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/consul","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.10.1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/consul","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.10.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.4~dfsg-3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.7~dfsg1-5ubuntu1","1.4.4~dfsg1-2ubuntu2","1.5.2+dfsg1-6","1.5.2+dfsg1-10","1.5.2+dfsg1-12","1.5.2+dfsg2-14"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.4+dfsg1-1","1.8.7+dfsg1-3"]}],"products":[{"vendor":"hashicorp","product":"consul"}],"references":[{"url":"https://www.hashicorp.com/blog/category/consul","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://github.com/hashicorp/consul/releases/tag/v1.10.1","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web","report"]},{"url":"https://discuss.hashicorp.com/t/hcsec-2021-17-consul-s-envoy-tls-configuration-did-not-validate-destination-service-subject-alternative-names/26856","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://security.gentoo.org/glsa/202208-09","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32574","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-25gf-8qrr-g78r","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-32574","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-32574","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-32574","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-32574","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.","status":"published","published":"2021-07-17T17:28:11Z","modified":"2024-08-03T23:25:30.307Z","updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-1430","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.","status":"published","published":"2021-07-17T17:28:11Z","modified":"2024-08-03T23:25:30Z","updated_at":"2026-11-03T03:24:36.41075Z"}],"ghsa":[{"id":"GHSA-25gf-8qrr-g78r","title":"Hashicorp Consul Missing SSL Certificate Validation","description":"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","published":"2021-07-19T21:21:03Z","modified":"2023-01-30T05:02:56Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:36:27.500048Z"}],"nvd":[{"id":"CVE-2021-32574","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.","status":"published","published":"2021-07-17T18:15:07.723Z","modified":"2026-06-17T03:53:12.033Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:06:55.747384Z"}],"osv":[{"id":"CVE-2021-32574","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.","status":"published","published":"2021-07-17T18:15:07.723Z","modified":"2026-10-20T10:54:41.65509048Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:19.793849Z"},{"id":"DEBIAN-CVE-2021-32574","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.","status":"published","published":"2021-07-17T18:15:07.723Z","modified":"2026-08-27T23:04:02.819289206Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:35.233346Z"},{"id":"GHSA-25gf-8qrr-g78r","title":"Hashicorp Consul Missing SSL Certificate Validation","description":"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","published":"2021-07-19T21:21:03Z","modified":"2026-09-10T03:49:15.385322274Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:46:33.956911Z"},{"id":"UBUNTU-CVE-2021-32574","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.","status":"published","published":"2021-07-17T18:15:00Z","modified":"2025-10-24T04:50:20Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:54:27.332852Z"},{"id":"BIT-consul-2021-32574","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.","status":"published","published":"2024-03-06T10:53:21.7Z","modified":"2026-09-08T08:45:59.682865239Z","updated_at":"2026-11-02T15:28:28.70813Z"},{"id":"GO-2022-0894","title":"Hashicorp Consul Missing SSL Certificate Validation in github.com/hashicorp/consul","description":"Hashicorp Consul Missing SSL Certificate Validation in github.com/hashicorp/consul","status":"published","published":"2024-08-21T15:29:08Z","modified":"2026-02-04T02:58:22.308389Z","updated_at":"2026-11-02T15:47:00.918515Z"}]}}