[GHSA-876p-8259-xjgg] libp2p nodes vulnerable to attack using large RSA keys - #9151
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August 17, 2026 16:21
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NRDAX-T0205 (Pre-Handshake Crypto CPU Burn) catalogues the mechanism class this advisory describes: asymmetric cryptography performed on attacker-supplied material before any authentication or authorisation check has run. The registry entry links the sibling implementations of that same condition across independent stacks, including CometBFT's SecretConnection STS exchange, which performs its X25519 and ed25519 work ahead of the nodeID allowlist check. The reference gives a reader of this advisory the class the go-libp2p RSA case belongs to, and the other public instances clustered against it.