Paper/Archive/CVE-2025-64443

CVE-2025-64443

docker mcp-gateway — DNS Rebinding vulnerability present when running MCP Gateway in sse or streaming mode

CVSS 9.6 (NVD)9.6 / 10 × 3028.8 Not in CISA KEV+300.0 EPSS percentile 36.7.367 × 207.3 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

mcp-gateway< 0.28.0–CNA

Scores by source

NVD9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

GitHub_M (CNA)7.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refgithub.com/docker/mcp-gateway/security/advisories/GHSA-46gc-mwh4-cc5r refgithub.com/docker/mcp-gateway/commit/6b076b2479d8d1345c50c112119c62978d46858e