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Suggestion detail

Untriaged
Permalink CVE-2026-32111
5.3 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): NONE
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): LOW
  • Integrity impact (I): NONE
  • Availability impact (A): NONE
created 1 week, 3 days ago
ha-mcp OAuth 2.1 DCR mode enables network reconnaissance via an error oracle

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.

References

Affected products

ha-mcp
  • ==< 7.0.0

Matching in nixpkgs

pkgs.ha-mcp

MCP server for controlling Home Assistant via natural language

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