{"id":"CVE-2018-19653","aliases":["DEBIAN-CVE-2018-19653","EUVD-2022-2433","GHSA-4qvx-qq5w-695p","GO-2023-1850","UBUNTU-CVE-2018-19653"],"status":"published","title":"HashiCorp Consul can use cleartext agent-to-agent RPC communication","description":"HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the verify_outgoing setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01223,"percentile":0.68963,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-310"],"published":"2018-12-09T19:00:00Z","modified":"2026-10-20T10:50:27Z","fixes":[{"ecosystem":"Go","package":"github.com/hashicorp/consul","fixed_in":["1.4.1"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:11","package":"consul","fixed_in":["1.4.4~dfsg1-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/hashicorp/consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.5.1"},{"fixed":"1.4.1"}]}]},{"source":"osv","ecosystem":"Debian:11","package":"consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.4~dfsg1-1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/consul","ranges":[{"type":"SEMVER","events":[{"introduced":"0.5.1"},{"fixed":"1.4.1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/consul","ranges":[{"type":"SEMVER","events":[{"introduced":"0.5.1"},{"fixed":"1.4.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.4~dfsg-3"]}],"products":[{"vendor":"hashicorp","product":"consul"}],"references":[{"url":"https://groups.google.com/forum/#%21topic/consul-tool/7TCw06oio0I","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://github.com/hashicorp/consul/pull/5069","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-19653","tags":["advisory"]},{"url":"https://groups.google.com/forum/#!topic/consul-tool/7TCw06oio0I","tags":["web"]},{"url":"https://github.com/hashicorp/consul/commit/b64e8b262f80397eab4f39c6ae7e14683cb9f55c","tags":["web","fix"]},{"url":"https://github.com/advisories/GHSA-4qvx-qq5w-695p","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-19653","tags":["advisory"]},{"url":"https://github.com/hashicorp/consul","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2018-19653","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-19653","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-19653","description":"HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the verify_outgoing setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.","status":"published","published":"2018-12-09T19:00:00Z","modified":"2024-08-05T11:44:20.263Z","updated_at":"2026-11-02T14:35:02.966615Z"}],"euvd":[{"id":"EUVD-2022-2433","description":"HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the verify_outgoing setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.","status":"published","published":"2018-12-09T19:00:00Z","modified":"2024-08-05T11:44:20Z","updated_at":"2026-11-03T02:39:32.468376Z"}],"ghsa":[{"id":"GHSA-4qvx-qq5w-695p","title":"HashiCorp Consul can use cleartext agent-to-agent RPC communication","description":"HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the `verify_outgoing` setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.","status":"published","published":"2022-05-14T01:36:20Z","modified":"2023-06-09T23:24:03Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T14:36:53.103029Z"}],"nvd":[{"id":"CVE-2018-19653","description":"HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the verify_outgoing setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.","status":"published","published":"2018-12-09T19:29:00.25Z","modified":"2026-06-17T01:49:40.083Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:04:49.995593Z"}],"osv":[{"id":"CVE-2018-19653","description":"HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the verify_outgoing setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.","status":"published","published":"2018-12-09T19:29:00.25Z","modified":"2026-10-20T10:50:27.364562908Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:08.834469Z"},{"id":"DEBIAN-CVE-2018-19653","description":"HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the verify_outgoing setting is improperly documented. NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.","status":"published","published":"2018-12-09T19:29:00.25Z","modified":"2026-08-04T06:04:29.105778415Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:30.57382Z"},{"id":"GHSA-4qvx-qq5w-695p","title":"HashiCorp Consul can use cleartext agent-to-agent RPC communication","description":"HashiCorp Consul 0.5.1 through 1.4.0 can use cleartext agent-to-agent RPC communication because the `verify_outgoing` setting is improperly documented. 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NOTE: the vendor has provided reconfiguration steps that do not require a software upgrade.","status":"published","published":"2018-12-09T19:29:00Z","modified":"2025-10-24T04:47:17Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:17.91743Z"},{"id":"GO-2023-1850","title":"HashiCorp Consul can use cleartext agent-to-agent RPC communication in github.com/hashicorp/consul","description":"HashiCorp Consul can use cleartext agent-to-agent RPC communication in github.com/hashicorp/consul","status":"published","published":"2024-08-20T20:31:32Z","modified":"2026-02-04T02:26:39.23291Z","updated_at":"2026-11-02T15:47:01.185262Z"}]}}