CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
4Description
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.
Analysis
A security vulnerability in MCP Gateway (CVSS 9.6). Critical severity with potential for significant impact on affected systems. Vendor patch is available.
Technical Context
Vulnerability type not specified by vendor. CVSS 9.6 indicates critical severity with likely remote exploitation vector. Affects MCP Gateway.
Affected Products
['MCP Gateway']
Remediation
Apply the vendor-supplied patch immediately.
Priority Score
Vendor Status
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-200985
GHSA-46gc-mwh4-cc5r