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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-46gc-mwh4-cc5r Docker MCP Plugin and Docker MCP Gateway have DNS Rebinding vulnerability when running in sse or streaming mode
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 03 Dec 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 03 Dec 2025 18:00:00 +0000

Type Values Removed Values Added
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.
Title DNS Rebinding vulnerability present when running MCP Gateway in sse or streaming mode
Weaknesses CWE-749
References
Metrics cvssV4_0

{'score': 7.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-12-03T18:14:24.648Z

Reserved: 2025-11-03T22:12:51.366Z

Link: CVE-2025-64443

cve-icon Vulnrichment

Updated: 2025-12-03T18:12:19.279Z

cve-icon NVD

Status : Received

Published: 2025-12-03T18:15:46.670

Modified: 2025-12-03T18:15:46.670

Link: CVE-2025-64443

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.