CVE 7.3 HIGH

DNS Rebinding vulnerability present when running MCP Gateway in sse or streaming mode_CVE-2025-64443

7.3 / 10
HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H

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.

Basic Information

ID CVE-2025-64443
Source GitHub_M
Published Dec 3, 2025 at 17:41
Modified Dec 3, 2025 at 18:14

Affected Product

Vendor docker
Product mcp-gateway
Version < 0.28.0
Affected Versions docker mcp-gateway < 0.28.0

CWE Classification

References

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