CVE-2026-73568

py-libp2p (Python implementation of libp2p) before 0.7.0 has a yamux handle_incoming() flaw in libp2p/stream_muxer/yamux/yamux.py: it reads a 32-bit DATA frame length with read_exactly() before validating against MAX_WINDOW_SIZE or checking stream_id. A peer completing the Noise handshake can sen...