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Cve-2026-86039

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medium advisory

Certified Address Hijacking in libp2p PeerStore

The @libp2p/peer-store package incorrectly validates PeerRecord envelopes, allowing attackers to inject fraudulent, certified addresses into the records of victim peers.

@libp2p/peer-store supply-chain peer-to-peer networking cve-2026-86039
2t 1c