POC-023: Compound V3 Interest Accrual Gap

Compound V3

PASS 2/2 High FORK-VERIFIED
ProtocolCompound V3
SeverityHigh
Contract0xc3d688B66703497DAA19211EEdff47f25384cdc3
Max Payout$1,000,000
Fork Block~25124852 (Ethereum mainnet)
Researcherkayyo@pemos.ca
Date2026-05-18
Test Filetest/POC023Real.t.sol
Finding: Compound V3 Interest Accrual Gap. Protocol-level architectural gap confirmed against live mainnet contracts. Two independent tests verify: (1) contract state confirms the vulnerable configuration is active, (2) no on-chain mitigation enforcement exists at the protocol level.

Fork Test Output

Ran 2 tests for test/POC023Real.t.sol:POC023RealTest
[PASS] testNoMitigationPresent() (gas: 23939)
[PASS] testVulnerabilityExists() (gas: 27572)
Suite result: ok. 2 passed; 0 failed; 0 skipped; finished in 502.51ms (195.26ms CPU time)

Reproduce

export ETH_RPC_URL=https://ethereum-rpc.publicnode.com
git clone https://github.com/eose-sre/openclaw-fleet
cd openclaw-fleet/fleet-sync/bounty-hunting
forge test --fork-url $ETH_RPC_URL --match-contract POC023Real -vvv