← The Polylog Crypto Intelligence Brief
Morning Edition · Saturday, October 31, 2026Published at 1:43 AM EDT · New York
Bridge and vault exploits cost zkLink Nova, an Avalanche tranche vault and Initia about $4.5 million combined
A reused message hash, a double-draw in share accounting and a caching bug in Initia's Move virtual machine each produced withdrawals or tokens that the systems should have rejected.
zkLink Nova (Ethereum and four layer-2 networks, about $783,000 to $797,000). DeFiHackLabs published a proof of concept showing a "transient-reuse" bug in zkLink Nova's Arbitrator bridge contract. The claimMessage function did not clear tem…
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Bridge and Mint Exploits Sustain Heavy DeFi Losses
Over 3-6 months, recurring bridge proof-validation and unauthorized-mint exploits keep monthly DeFi losses elevated, including drains of deprecated contracts.
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