nimiq-libp2p is a Nimiq network implementation based on libp2p. Prior to version 1.3.0, "MessageCodec::read_request" and "read_response" call "read_to_end()" on inbound substreams, so a remote peer can send only a partial frame and keep the substream open. because "Behaviour::new" also sets "with_max_concurrent_streams(1000)", the node exposes a much larger stalled-slot budget than the library default. The patch for this vulnerability is formally released as part of v1.3.0. No known workarounds are available.