CVE-2026-86039

CVE-2026-86039 affects @libp2p/peer-store (part of the JavaScript libp2p networking stack) from versions 8.0.0 through 12.0.24 . The root cause is in consumePeerRecord, which verifies a RecordEnvelope signature but fails to require that PeerRecord.peerId in the signed payload matches the signer p...

GHSA-GCQ9-QQWX-RGJ3 libp2p nodes vulnerable to OOM attack

Summary In go-libp2p, by using signed peer records a malicious actor can store an arbitrary amount of data in a remote node’s memory. This memory does not get garbage collected and so the victim can run out of memory and crash. It is feasible to do this at scale. An attacker would have to transfe...