Summary
LlamaRisk supports the launch of a dedicated Aave V4 bug bounty on Sherlock. This dedicated program would support ongoing external risk management for the Aave upgrade, consistent with our previous analysis of bug bounties. We believe this program provides a strong basis for initial V4 coverage, and we are encouraged by the intended progressive approach, with incentives increasing as the protocol matures and TVL grows.
Program Analysis
The proposed bounty’s exclusive focus on V4 highlights the need to continuously monitor its architectural security, given its novelty and departure from prior versions. This program distinguishes itself from Aave’s existing Immunefi bug bounty, which primarily covers V2 and V3 smart contracts.
In our Bug Bounty Landscape analysis, we identified two key criteria for an effective bug bounty program that protocols should implement to secure and incentivize active risk management. These criteria include:
- Comprehensive Scope of Coverage
- Adequacy of Financial Incentives
The comprehensiveness of a bug bounty program reflects the extent to which it covers all vectors that could expose the protocol to risk. This proposed bounty sufficiently covers the key areas related to V4 and all base contracts and inheritances. The maximum bounty as specified in the ARFC is currently set to $500K for critical severity issues. To assess the adequacy of this financial incentive, we compare the maximum bounty payout to the value it secures. Given that TVL is yet to be determined, the $500K maximum bounty exceeds the minimum $50K threshold we recommended in our bug bounty article. Payouts will increase progressively as TVL grows, in line with best practices we believe all programs should follow.
The 250 USDC stake requirement for High and Critical submissions is a practical mechanism to filter low-quality reports and preserve triage bandwidth for actionable findings. Combined with the 5% fee on payouts and the absence of a fixed annual platform fee, the program’s cost structure aligns Sherlock’s incentives with actual program activity, making it cost-efficient for the Protocol.
Recommendations
While the program covers the core areas of V4, in relation to Aave overall, neither the immunefi program nor the proposed Sherlock program provides coverage for non-smart contract points of risk, i.e., the explicit inclusion of other critical areas such as web applications, domains, and APIs. To strengthen the overall security posture, we would recommend including coverage for such assets that interface with V4.
The initial coverage and severity scales provide an adequate starting point for the program. As V4 matures, the financial incentives offered should remain commensurate with the TVL secured and Aave’s standing as a leading DeFi protocol.
Disclaimer
This review was independently prepared by LlamaRisk, a DeFi risk service provider funded in part by the Aave DAO. LlamaRisk is not directly affiliated with the protocol(s) reviewed in this assessment and did not receive any compensation from the protocol(s) or their affiliated entities for this work.
The information provided should not be construed as legal, financial, tax, or professional advice.