{"cve":"CVE-2018-19653","nvd":{"published":"2018-12-09T19:29:00.250","modified":"2026-06-17T01:49:40.083","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9},"cwes":["CWE-310"],"references":["https://github.com/hashicorp/consul/pull/5069","https://groups.google.com/forum/#%21topic/consul-tool/7TCw06oio0I","https://github.com/hashicorp/consul/pull/5069","https://groups.google.com/forum/#%21topic/consul-tool/7TCw06oio0I"],"products":["hashicorp:consul"],"source":"nvd","synced_at":"2026-10-19T20:54:36.112582389+00:00"},"epss":{"cve":"CVE-2018-19653","score":0.01223,"percentile":0.68779,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-4qvx-qq5w-695p","url":"https://osv.dev/vulnerability/GHSA-4qvx-qq5w-695p","summary":"HashiCorp Consul can use cleartext agent-to-agent RPC communication","modified":"2026-09-10T03:49:37.495348649Z","packages":[{"ecosystem":"Go","name":"github.com/hashicorp/consul","purl":"pkg:golang/github.com/hashicorp/consul","ranges":[">=0.5.1 <1.4.1"],"fixed":["1.4.1"]}]},{"id":"GO-2023-1850","url":"https://osv.dev/vulnerability/GO-2023-1850","summary":"HashiCorp Consul can use cleartext agent-to-agent RPC communication in github.com/hashicorp/consul","modified":"2026-02-04T02:26:39.232910Z","packages":[{"ecosystem":"Go","name":"github.com/hashicorp/consul","purl":"pkg:golang/github.com/hashicorp/consul","ranges":[">=0.5.1 <1.4.1"],"fixed":["1.4.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}