CVE‑2026‑34063: Peer Can Crash Node by Double Disc..

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CVE‑2026‑34063: Peer Can Crash Node by Double Discovery Substream | #cybersecurity #blockchain #network vulnerabilities #defendmybusiness #advisory

CVE‑2026‑34063: Peer Can Crash Node by Double Discovery Substream

CVE‑2026‑34063: Peer Can Crash Node by Double Discovery Substream

On April 22 2026, the CVE feed reported a critical vulnerability in Nimiq’s *network-libp2p*, a library built on libp2p for blockchain networking. The flaw allows a remote peer to open the discovery protocol substream twice on a single connection, causing the node’s p2p swarm to cr

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