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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Aave V3 uses oracle prices to value collateral and debt; those valuations affect a position’s health factor and whether it is eligible for liquidation. A liquidator can repay debt in exchange for collateral under the rules for that market and reserve. Oracle safeguards such as the PriceOracleSentinel address certain outage conditions, but their configuration—and the relevant liquidation parameters—can differ across Aave deployments. Check the specific chain, market, reserve and deployed version before relying on a particular setting.
How does Aave V3 get asset prices?
Aave documentation says each reserve is associated with an oracle contract, and oracle selection is made through Aave Governance. Aave’s production-market overview names Chainlink Price Feeds and the Correlated Assets Price Oracle (CAPO) as oracle types. CAPO is used for strongly correlated assets, for example, a wrapped asset priced in relation to its underlying. The oracle, feed pairing and any related configuration can vary by reserve and chain, so these types should not be taken as a complete inventory of what a particular market currently uses. Aave’s oracle documentation explains the system.
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Aave also maintains price-feed adapters for cases where plain Chainlink pricing does not meet Aave’s risk requirements. That repository establishes the purpose of adapters, not a complete list of adapters active in every market.
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Oracle valuations feed into the value Aave assigns to a position’s collateral and debt. Along with reserve-specific liquidation thresholds, those values determine the position’s health factor. Aave’s V3 overview states that a health factor below 1 makes a position eligible for liquidation. Changes in an oracle valuation or accrued interest can therefore move a position closer to or farther from that threshold. Aave’s V3 overview describes health factor and liquidation eligibility; Aave DAO’s risk-parameter framework describes the relevant risk calculations.
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Eligibility is not the same as an automatic or guaranteed immediate liquidation. Liquidation is an on-chain action: someone must submit a transaction that meets the applicable rules, and execution depends on market and transaction conditions. A health factor is a risk indicator, not a promise about when a liquidator will act.
What happens if an oracle or L2 sequencer goes down?
Aave’s PriceOracleSentinel checks oracle health to determine whether certain operations are allowed. Aave documents it as especially intended to address L2 sequencer downtime. After an oracle recovers, a configured grace period can affect liquidation eligibility; borrowing can also be disabled in specified conditions. These are safeguards for particular situations, not a guarantee that all operations are paused during every oracle issue.
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Sentinel use and settings are deployment-specific. Aave’s documentation does not establish one universal grace period or identical behavior for every chain and market. Consult the relevant market’s current contracts and configuration rather than assuming a particular outage response. Aave’s oracle and sentinel documentation describes the mechanism.
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How does liquidation work on Aave V3?
A liquidator repays debt and receives collateral according to the applicable reserve-level rules and incentives. The collateral is transferred at a discount or bonus set through reserve parameters; the precise amount depends on the market’s rules and position. Liquidation incentives compensate liquidators for taking on the transaction, but they also mean that a borrower can lose more collateral value than the debt repaid.
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Do not treat any single close-factor percentage as universal across Aave V3. Aave DAO’s risk-parameter framework describes full liquidation as possible as a position approaches insolvency, and specifies health factor below 0.95 for that rule. Separately, Aave’s V3.3 feature document describes a version-specific default close factor of 50%, with a maximum of 100% when health factor falls below a threshold, and a change to how the close factor applies across a position. These statements refer to different documentation and implementation contexts; they should not be combined into one rule for every deployment.
| Documentation | What it says | How to apply it |
|---|---|---|
| Aave DAO risk-parameter framework | Describes full liquidation near insolvency, specifying health factor below 0.95. | Use only for a market and implementation whose applicable rules match this framework. |
| Aave V3.3 feature document | Describes a 50% default close factor and up to 100% below a health-factor threshold, alongside a redesign of how the factor applies. | Version-specific; check the deployed implementation and market parameters for the actual rule. |
The table summarizes documented rules, not a live inventory of which version or settings each market currently uses. The V3 overview explains the basic repayment-for-collateral process.
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Which market parameters change borrowing and liquidation risk?
Aave’s risk framework describes multiple controls that shape how much a reserve can be used and what happens as a position becomes risky. These values are calibrated by asset and can differ between markets; they are not protocol-wide constants.
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- Loan-to-value (LTV): influences how much can be borrowed against supplied collateral.
- Liquidation threshold: contributes to the health-factor calculation and helps determine when a position becomes eligible for liquidation.
- Liquidation penalty or incentive: affects the collateral value involved when debt is repaid through liquidation.
- Supply and borrow caps: limit the amount of an asset that can be supplied or borrowed in a reserve.
- Isolation mode and siloed borrowing: restrict how certain collateral or debt assets can be combined.
- eMode: provides a risk configuration for eligible correlated assets; eligibility and parameters depend on the market.
When assessing a particular position, identify the market and chain first, then check its collateral and borrowed assets and their current reserve parameters. A figure from another chain, reserve or version may not apply. Aave DAO’s risk-parameter framework describes these controls.
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Can an oracle error liquidate an Aave position?
An incorrect or disrupted price can affect the valuation used in a position’s health factor, which can affect liquidation eligibility. Aave documents oracle and network risks, but that does not establish that a specific oracle error has occurred or that every unusual price movement is an error. Nor can the general documentation determine the cause of a particular position’s health-factor change.
To investigate a specific case, compare the affected reserve’s oracle configuration and price with the market’s current risk parameters and the position’s transaction history. Those details are chain- and reserve-specific; the general Aave documentation does not provide a complete, current inventory of oracle addresses, feed pairs, sentinel settings, CAPO bounds and parameters for every deployment.
What risks remain despite Aave’s safeguards?
Aave identifies smart-contract, oracle, collateral, network and bridge risks. Audits, reviews, a bug bounty, decentralized feeds, governance and risk parameters are mitigation measures, not guarantees that failures or losses cannot occur. Feeds can fail or be compromised, collateral can lose value or liquidity, contracts can contain vulnerabilities, and networks or bridges can experience problems. Aave’s risk overview discusses these categories and mitigations.
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