RUSTSEC-2026-0189Published
DNS rebinding vulnerability in rmcp Streamable HTTP server transport
Exact source revision recorded 24 Oct 2026 13:19:54 UTC. It does not establish the source's current position. Latest evidence.
Explicit identifiers and source references
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CVE-2026-42559 · Microsoft / collected KEV context
osv · RUSTSEC-2026-0189
- https://crates.io/crates/rmcp
- https://rustsec.org/advisories/RUSTSEC-2026-0189.html
- https://github.com/modelcontextprotocol/rust-sdk/issues/815
- https://github.com/modelcontextprotocol/rust-sdk/pull/764
- https://github.com/modelcontextprotocol/rust-sdk/issues/822
- https://modelcontextprotocol.io/specification/2025-06-18/basic/transports#security-warning
Current operational correlations are not mixed into this historical source record. Open latest evidence to discover current connections.