{"id":"CVE-2018-19653","aliases":["GHSA-4qvx-qq5w-695p","GO-2023-1850"],"url":"https://o3.security/vulnerability/CVE-2018-19653","summary":"HashiCorp Consul can use cleartext agent-to-agent RPC communication","details":"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.","published":"2018-12-09T19:29:00.250Z","modified":"2026-07-08T16:08:23.368209Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/hashicorp/consul","fixedVersion":"1.4.1"}],"fix":{"url":"https://github.com/hashicorp/consul/pull/5069","label":"hashicorp/consul#5069"},"references":[{"type":"WEB","url":"https://groups.google.com/forum/#%21topic/consul-tool/7TCw06oio0I"},{"type":"FIX","url":"https://github.com/hashicorp/consul/pull/5069"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T16:08:23.368209Z"}}