Descripción
RMCP is an official Rust SDK for the Model Context Protocol. Prior to version 1.4.0, the rmcp crate-s Streamable HTTP server transport (crates/rmcp/src/transport/streamable_http_server/) did not validate the incoming Host header. This allowed a malicious public website, via a DNS rebinding attack, to send authenticated requests to an MCP server running on the victim-s loopback or private-network interface. This vulnerability is fixed in 1.4.0.
CVSS 8.8EPSS 0.213%Riesgo 0.9
Ver fuente- Publicación
- 2026-05-14 15:16:46
- Versiones afectadas
- <1.4.0
- Tipo
- Package
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H