Threats affecting pkg:github/docker/mcp-gateway

CVE-2025-64443 is a high-severity vulnerability in docker's MCP Gateway versions prior to 0.28.0, caused by DNS rebinding when running in sse or streaming transport modes. This flaw allows attackers to exploit browser-based access to MCP servers behind the gateway by tricking victims into visiting malicious websites or ads, enabling manipulation of exposed tools and features. The default stdio mode is not affected as it does not listen on network ports. No known exploits are currently in the wild, and the vulnerability was fixed in version 0.28.0. The vulnerability has a CVSS 4.0 score of 7.