CVE-2025-64443 Details
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.
A DNS rebinding vulnerability has been identified in Docker MCP Gateway versions through 0.27.0. This issue arises when the gateway is operated in SSE or streaming transport mode, allowing an attacker to exploit MCP servers behind the gateway. The vulnerability can be triggered by getting a victim to visit a malicious website or interact with a harmful advertisement. Once exploited, the attacker could manipulate tools or features of the MCP servers. However, this vulnerability does not exist when the gateway is running in the default standard input mode, which does not open network ports.
Users can upgrade to Docker MCP Gateway version 0.28.0 or later, which addresses the DNS rebinding vulnerability. If an immediate upgrade is not possible, the gateway can be run in the default standard input mode to avoid the vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Dec 3, 2025References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-749 | Exposed Dangerous Method or Function | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| docker mcp gateway | < 0.28.0 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 10, 2026 | Initial Analysis | [email protected] |
| Dec 3, 2025 | New CVE Received | [email protected] |