Chain Split Vulnerability denotes a weakness in a blockchain protocol that could cause the network to diverge into two distinct, incompatible transaction histories. This division arises when different groups of nodes validate different sequences of blocks. It can lead to uncertainty regarding transaction finality and asset ownership. Such a vulnerability undermines the network’s unified state.
Context
The state of Chain Split Vulnerability is a persistent area of research and development within blockchain security. A key debate surrounds the optimal balance between decentralization and the risk of network fragmentation during upgrades or contentious events. Future advancements aim to fortify protocols against such divisions, ensuring consistent ledger integrity.
A core software library vulnerability allowed an oversized transaction hash to bypass validation, creating a consensus failure and a critical chain split.
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