Threats affecting pkg:github/homeassistant-ai/ha-mcp

CVE-2026-32112 is a cross-site scripting (XSS) vulnerability in the ha-mcp OAuth consent form of the Home Assistant MCP Server prior to version 7.0.0. The vulnerability arises because user-controlled parameters are rendered using Python f-strings without proper HTML escaping, allowing injection of malicious JavaScript. Exploitation requires an attacker to reach the OAuth endpoint and trick the server operator into visiting a crafted authorization URL. This issue affects only users who have explicitly enabled the beta OAuth mode (ha-mcp-oauth), which is not part of the default setup. The vulnerability has a CVSS score of 6.8, indicating medium severity, with high impact on confidentiality and integrity but no impact on availability. No known exploits are currently in the wild. The vulnerability is fixed in version 7.

CVE-2026-32111 is a Server-Side Request Forgery (SSRF) vulnerability in the ha-mcp component of homeassistant-ai versions prior to 7.0.0. The vulnerability arises because the OAuth consent form accepts a user-supplied ha_url and makes an HTTP request to {ha_url}/api/config without validating the URL. This allows unauthenticated attackers to perform internal network reconnaissance by submitting arbitrary URLs. Two other OAuth-related code paths (REST and WebSocket) are also affected by this SSRF primitive. The primary deployment method using a private URL with a pre-configured HOMEASSISTANT_TOKEN is not vulnerable. The issue has a CVSS score of 5.3 (medium severity) and was fixed in version 7.0.