GitHub Advisoryadvisory · Go

GHSA-46gc-mwh4-cc5r Docker MCP Plugin and Docker MCP Gateway have DNS Rebinding vulnerability when running in sse or streaming mode

HIGH Published 2025-12-03 Modified 2025-12-03 Official page ↗
Aliases
CVE-2025-64443
Ecosystem
Go
Packages
github.com/docker/mcp-gateway
Severity
High
CVSS 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
Weaknesses
CWE-749
Reviewed
2025-12-03

Affected packages

• Go github.com/docker/mcp-gateway: < 0.28.0 → fixed in 0.28.0

Description

Impact When ran in sse or streaming mode (--transport), the Docker MCP Gateway is vulnerable to a DNS rebinding attack. Vulnerability allows for Browser-Based exploitation of any MCP servers that are executing within the Docker MCP Gateway. Any tools or other features exposed by MCP servers can be manipulated by an attacker who is able to get a victim to visit a malicious website, or if a victim is served a malicious advertisement. The MCP Gateway is not prone to this attack when started in its default stdio mode, which does not listen on any network ports. Patches Patch available in version v0.28.0 Workarounds Do not start the MCP gateway in sse or streaming mode (use default stdio)

Related

Alias · CVE (1)

  • CVE-2025-64443 MCP Gateway allows easy and secure running and deployment of MCP servers. vulnerability

Weakness · CWE (1)

  • CWE-749 Exposed Dangerous Method or Function weakness

References