CVE-2023-2816

HIGH

Consul 1.15.0-1.15.3 - Incorrect Privilege Assignment via Envoy Extension Downstream Proxy Configuration

Title source: llm

Description

Consul and Consul Enterprise allowed any user with service:write permissions to use Envoy extensions configured via service-defaults to patch remote proxy instances that target the configured service, regardless of whether the user has permission to modify the service(s) corresponding to those modified proxies.

References (1)

Core 1

Core References

Vendor Advisory

https://discuss.hashicorp.com/t/hcsec-2023-16-consul-envoy-extension-downstream-proxy-configuration-by-upstream-service-owner/54525

Scores

CVSS v3 8.7

EPSS 0.0016

EPSS Percentile 36.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-266

Status published

Products (2)

hashicorp/consul 1.15.0 - 1.15.3 (2 CPE variants)

hashicorp/consul 1.15.0 - 1.15.3Go

Published Jun 02, 2023

Tracked Since Feb 18, 2026