skills/smithery.ai/cross-chain

cross-chain

SKILL.md

Cross-Chain Vulnerability Patterns

This skill provides comprehensive knowledge for identifying cross-chain and bridge vulnerabilities in smart contracts.

Overview

Cross-chain communication introduces trust assumptions at chain boundaries. Message verification is the entire security model - if messages can be forged or replayed, billions can be stolen.

Historical Context

Hack Loss Root Cause
Ronin Bridge $624M Compromised validators
Wormhole $326M Signature verification bypass
Nomad $190M Initialization bug allowed fake proofs
Harmony Horizon $100M Compromised validators

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2
First Seen
Mar 24, 2026
cross-chain from smithery.ai