How Does Rhea Lend Work?

Lending|Risk C+|6 mechanisms|5 interactions

Rhea Finance is the main DeFi hub on NEAR Protocol, formed from the merger of Ref Finance (DEX) and Burrow Finance (lending). It offers lending, borrowing, swapping, margin trading, and liquid staking (rNEAR) all in one place. You can stake RHEA tokens for xRHEA to boost yields and even borrow against your staked position. The protocol uses Pyth Network oracles for price feeds and has published security audits, though the predecessor Ref Finance did suffer an exploit in the past.

TVL

$68M

Sector

Lending

Risk Grade

C+

Value Grade

C-

Core Mechanisms

Lending/Pool-Based

Unified lending pools from Burrow Finance merger with variable interest rates

Lending pools inherited from Burrow Finance with standard supply/borrow model. Users deposit assets and earn interest from borrowers based on pool utilization rates.

Staking/Liquid-Staking

rNEAR: liquid staking token for NEAR with yield-bearing exchange rate

Users stake NEAR and receive rNEAR, a yield-bearing token that increases in value over time. Lending incentives are distributed in rNEAR rather than raw NEAR.

Staking/Governance

Novel

xRHEA: staked RHEA governance token usable as borrowing collateral at 75% LTV

Users can stake RHEA for xRHEA to boost lending/farming APY, and also use xRHEA as collateral to borrow against their governance position. This creates circular leverage risk.

DEX/AMM

Integrated AMM from Ref Finance merger for swaps and liquidity provision

The AMM component inherited from Ref Finance provides swap functionality and liquidity pools. This was the component that suffered the previous exploit.

Oracle/Price-Feed

Pyth Network oracle integration for institutional-grade price feeds

Rhea integrated Pyth Oracle in August 2025 for price feeds used in lending liquidations and margin trading. Replaces or supplements the previous oracle infrastructure.

Trading/Margin

Novel

On-chain margin trading with full liquidation model

Margin trading with full liquidation (not partial) where positions are completely closed upon liquidation trigger. Uses open liquidation model where any address can execute liquidations.

How the Pieces Interact

xRHEA collateral borrowing (75% LTV)RHEA token thin liquidityHigh

Borrowing against xRHEA at 75% LTV with RHEA's low market cap ($3M) means even modest sell pressure can crash the RHEA price, triggering mass liquidations of xRHEA-backed positions in a self-reinforcing spiral.

Ref Finance exploit heritageMerged protocol codebaseHigh

The merger of Ref Finance and Burrow Finance into Rhea Finance combined two codebases, one of which had a previous exploit. The integration complexity increases the risk of overlooked vulnerabilities in the combined system.

Pyth oracle price feedsMargin trading liquidationsMedium

Full liquidation model in margin trading relies entirely on Pyth oracle accuracy. Oracle latency or manipulation during volatile markets could cause unfair liquidations or prevent timely ones.

rNEAR liquid stakingLending pool collateralMedium

rNEAR used as both a lending incentive token and potential collateral creates recursive yield dependencies where a rNEAR depeg would simultaneously reduce incentive value and collateral backing.

Cross-chain expansionBridge dependenciesMedium

Planned expansion to EVM and Solana chains introduces bridge risk for cross-chain assets (BTC, EVM tokens). Bridge exploits are among the largest DeFi losses historically.

What Could Go Wrong

  1. Predecessor protocol (Ref Finance) suffered a smart contract exploit where a hotfix bug allowed users to drain LP tokens, and the merged codebase inherits this risk heritage
  2. xRHEA collateral borrowing at 75% LTV creates high liquidation risk during RHEA token volatility, especially given the low market cap and thin liquidity
  3. Cross-chain expansion to EVM and Solana (Q4 2025 roadmap) introduces bridge risk and increases the attack surface significantly

xRHEA Collateral Liquidation Cascade

Moderate

Trigger: RHEA token drops 40%+ in value within 24 hours due to a large holder sell-off or market-wide downturn, triggering mass liquidations of xRHEA-backed borrowing positions

  1. 1.Large RHEA holder dumps tokens on thin liquidity ($3M market cap), crashing price 40%+ xRHEA collateral value drops below 75% LTV threshold for borrowers
  2. 2.Open liquidation model triggers mass liquidations of xRHEA-backed positions Liquidated xRHEA is sold on market, creating additional sell pressure on RHEA
  3. 3.Self-reinforcing liquidation spiral as RHEA price continues falling from liquidation selling Most xRHEA-backed positions are liquidated; RHEA token price drops 70%+
  4. 4.Lending pool bad debt accumulates if liquidations cannot cover outstanding borrows Lenders face losses as the lending pool becomes undercollateralized

Risk Profile at a Glance

Mechanism Novelty5/15
Interaction Severity8/20
Oracle Surface4/10
Documentation Gaps4/10
Track Record8/15
Scale Exposure3/10
Regulatory Risk5/10
Vitality Risk5/10
C+

Overall: C+ (42/100)

Lower score = safer

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