CVE-2019-9764

HIGH

HashiCorp Consul <1.4.3 - Info Disclosure

Title source: llm

Description

HashiCorp Consul 1.4.3 lacks server hostname verification for agent-to-agent TLS communication. In other words, the product behaves as if verify_server_hostname were set to false, even when it is actually set to true. This is fixed in 1.4.4.

References (1)

[Exploit, Third Party Advisory] https://github.com/hashicorp/consul/issues/5519

Scores

CVSS v3 7.4

EPSS 0.0018

EPSS Percentile 39.8%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Classification

CWE

CWE-346

Status published

Affected Products (2)

hashicorp/consul

hashicorp/consul < 1.4.4Go

Timeline

Published Mar 26, 2019

Tracked Since Feb 18, 2026