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DNS rebinding vulnerability in rmcp Streamable HTTP server transport

🗓️ 29 Apr 2026 12:00:00Reported by rustsecType 
rustsec
 rustsec
🔗 rustsec.org👁 5 Views

DNS rebinding allowed local MCP access via rmcp HTTP server; fixed in 1.4.0 with loopback allowlist; upgrade.

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Vulners
Node
modelcontextprotocolrmcpRange0.0.01.4.0rust

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30 Jun 2026 07:16Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18.8
EPSS0.00213
SSVC
5