Description

ha-mcp is a Home Assistant MCP Server. Prior to 7.0.0, the ha-mcp OAuth consent form renders user-controlled parameters via Python f-strings with no HTML escaping. An attacker who can reach the OAuth endpoint and convince the server operator to follow a crafted authorization URL could execute JavaScript in the operator's browser. This affects only users running the beta OAuth mode (ha-mcp-oauth), which is not part of the standard setup and requires explicit configuration. This vulnerability is fixed in 7.0.0.

INFO

Published Date :

2026-03-11T20:42:30.381Z

Last Modified :

2026-03-12T14:05:47.508Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-32112 vulnerability.

Vendors Products
Homeassistant-ai
  • Ha-mcp
  • Home Assistant Mcp Server
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-32112.

URL Resource
https://github.com/homeassistant-ai/ha-mcp/security/advisories/GHSA-pf93-j98v-25pv cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact