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.
History

Thu, 04 Dec 2025 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Docker
Docker docker
Docker mcp Gateway
Vendors & Products Docker
Docker docker
Docker mcp Gateway

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: 2025-12-03T17:41:59.272Z

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 : Awaiting Analysis

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

Modified: 2025-12-04T17:15:08.283

Link: CVE-2025-64443

cve-icon Redhat

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