joaovicdev/EXPLOIT-CVE-2026-42559

PoC

Docker lab + Python PoC for CVE-2026-42559 - DNS rebinding via unvalidated Host header in the rmcp (Rust MCP SDK) Streamable HTTP server transport

view exploit source poc_in_githubauthor joaovicdevpublished 2026-09-06catalog poc_in_github

exploited CVEs (1)

Known CVEs related to this entry.

ID	severity	EPSS	exploitable	published
CVE-2026-42559US	—	0.27% (19th)	Exploit	2026-05-14
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_se…

scry

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