Vulnerability Description
MCP Gateway allows easy and secure running and deployment of MCP servers. In versions 0.27.0 and earlier, when MCP Gateway runs in sse or streaming transport mode, it is vulnerable to DNS rebinding. An attacker who can get a victim to visit a malicious website or be served a malicious advertisement can perform browser-based exploitation of MCP servers executing behind the gateway, including manipulating tools or other features exposed by those MCP servers. MCP Gateway is not affected when running in the default stdio mode, which does not listen on network ports. Version 0.28.0 fixes this issue.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Docker | Mcp Gateway | < 0.28.0 |
Related Weaknesses (CWE)
References
- https://github.com/docker/mcp-gateway/commit/6b076b2479d8d1345c50c112119c62978d4Patch
- https://github.com/docker/mcp-gateway/security/advisories/GHSA-46gc-mwh4-cc5rVendor Advisory
FAQ
What is CVE-2025-64443?
CVE-2025-64443 is a vulnerability with a CVSS score of 9.6 (CRITICAL). MCP Gateway allows easy and secure running and deployment of MCP servers. In versions 0.27.0 and earlier, when MCP Gateway runs in sse or streaming transport mode, it is vulnerable to DNS rebinding. A...
How severe is CVE-2025-64443?
CVE-2025-64443 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-64443?
Check the references section above for vendor advisories and patch information. Affected products include: Docker Mcp Gateway.