Solana lending protocol Kamino manually blacklisted an on-chain address linked to Jupiter Lend, preventing users from refinancing positions through Jupiter’s Refinance tool. Users and contributors reported being blocked and forced into lower or negative APYs. Kamino controls over 60% of Solana’s lending market TVL (Solana lending market ~ $3.7B; Kamino TVL fell from $3.71B to $2.33B); Jupiter Lend’s TVL recently topped $1B. No public statements from either team at press time.

Kamino manually blacklisted an address tied to Jupiter Lend, explicitly blocking users from using Jupiter’s Refinance tool; affected users reported being forced into lower or negative APYs. Kamino controls over 60% of Solana lending TVL (Solana lending market ~ $3.7B) while Jupiter Lend’s TVL topped $1B. The action and large market share imply material risk to lending flows; neither project had issued a public statement. KMNO was up ~2.5% and JUP ~5% on the day (market reaction noted).