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DeFi Lending in 2026: Aave v4, Credit Scoring, and the Undercollateralization Problem

@blockonomist | 2026-05-12 22:03:42 |

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# DeFi Lending in 2026: Aave v4, Credit Scoring, and the Undercollateralization Problem

DeFi lending was built on overcollateralization — you must put up $150 to borrow $100. This is safe but useless for most real-world lending use cases.

**What's changing in 2026:**
- **Aave v4**: Unified liquidity layer, cross-chain collateral, dynamic interest rates. Reduces capital fragmentation significantly.
- **On-chain credit scoring**: Protocols like Spectral Finance and Cred Protocol are building reputation systems from on-chain transaction history — enabling partial undercollateralization for established wallets.
- **RWA collateral**: Real-world asset tokenization (treasuries, invoices) as collateral is reducing the pure crypto-volatility exposure that makes overcollateralization necessary.

**The core problem remains**: No DeFi protocol can enforce repayment in the real world. True undercollateralized lending requires legal identity — which conflicts with pseudonymity.

→ [DeFi lending evolution →](/node/1389)

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