KETJU Research

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Dollar lending

NAVI Lending

Not approved Runs only on a chain that failed review
Issued
2026-08-14
Last confirmed
2026-08-14
Next check due
2026-11-15
Chains
Sui · Issuer can freeze

NAVI is an overcollateralized lending market on Sui covering SUI, USDC, USDT, wETH and wrapped assets and many long-tail tokens. DefiLlama records about $121.9M supplied and $67.4M borrowed, all on Sui. Health-factor liquidation and audited Move contracts do not override the Sui chain verdict, whose control precedent is independently decisive. This is not an allegation of a NAVI exploit.

The research file

Reachability, not protocol quality

The rejection sits at the settlement layer, not the application: every state transition, oracle update, liquidation and withdrawal here ultimately depends on validator or sequencer operation, finality, bridge security and emergency controls the protocol team cannot neutralize by shipping audited contracts. Quoted protocol TVL and DEX depth can remain visible on-chain while operational exit is unavailable if the chain cannot finalize or the bridge route is impaired. The same protocol on an approved deployment would receive its own individual review.

Mechanism

Suppliers fund shared pools and receive interest from borrowers; supplied assets can become collateral. Loan-to-value, liquidation threshold and oracle prices determine health. Below a health factor of one, liquidators repay debt and seize discounted collateral.

Control and evidence

NAVI publishes Move contracts, risk parameters and external audits, while governance and administrators manage listed assets and parameters. Those controls remain subordinate to Sui settlement, where validator deny-list capability and the Cetus response demonstrated coordinated state intervention.

Exit consequences

A lender withdraws by burning the receipt token only while pool liquidity is available. High utilization, bad debt, oracle failure or frozen underlying assets can impair exit. Every withdrawal and liquidation instruction requires Sui execution.

Why the class rule decides

Because all material liquidity is on Sui, the rejected-chain dossier decides before market-level underwriting. Review reopens only if NAVI deploys material liquidity on an approved chain or the Sui verdict changes.

Class rule

The rejected chain class is outside the approved structures, so every protocol in it is not approved until the rule changes. The rule is about the structure, not an adverse finding about this protocol, and it is not a client instruction. The events that would reopen it are listed with the memo.

Sources

The claims above trace to these. Where a number could not be independently verified, the thesis says so.

Inherited controls

The research above describes the protocol layer. Every position also inherits the asset it holds and the chain it settles on. The layer with the most administrative power sets the position’s effective control; that describes control, not quality or suitability.

ChainVerdictControlControl constraint
SuiRejected Issuer can freeze freeze and seizure are demonstrated: standing validator deny lists began freezing the Cetus exploiter’s ~$162M within about 80 minutes, and a Foundation-organized vote later moved the frozen funds without the owner’s keys.
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