CVE-2026-32111
ha-mcp is a Home Assistant MCP Server. Prior to 7.0.0, the ha-mcp OAuth consent form (beta feature) accepts a user-supplied ha_url and makes a server-side HTTP request to {ha_url}/api/config with no URL validation. An unauthenticated attacker can submit arbitrary URLs to perform internal network reconnaissance via an error oracle. Two additional code paths in OAuth tool calls (REST and WebSocket) are affected by the same primitive. The primary deployment method (private URL with pre-configured HOMEASSISTANT_TOKEN) is not affected. This vulnerability is fixed in 7.0.0.
Published:Mar 11, 2026
Last Modified:Mar 20, 2026
EPS:Mar 11, 2026
EPSS Score:0.00037
CVSS Score:5.3
Affected Products
Vendor
Product
Action
Vendor
Homeassistant-ai
Product
Ha-mcp
Homeassistant-ai
Ha-mcp
Vendor
Homeassistant-ai
Product
Home Assistant Mcp Server
Homeassistant-ai
Home Assistant Mcp Server
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
