ERC-4626 virtual-share offset (OZ ≥4.9)

Centrifuge's assessment for RD-F-074 — scored gray on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Centrifuge uses ERC-7540 (extension of ERC-4626) for tranche vaults. V2 LiquidityPool.sol (C4 2023 codebase) shows no virtual-share offset pattern. Price is set by hub NAV oracle (not share/totalAssets formula). Classic OZ ≥4.9 virtual-share offset is designed for synchronous vault deposits where share price is balanceOf-derived; Centrifuge's asynchronous epoch model sets price externally, making the OZ offset pattern less relevant.

Sources #

GitHub
https://github.com/code-423n4/2023-09-centrifuge/blob/main/src/LiquidityPool.solretrieved 2026-04-27

Methodology #

Determine whether ERC-4626 vaults use OpenZeppelin ≥4.9 virtual-share offset pattern to prevent first-depositor share-inflation.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol centrifuge factor RD-F-074 score gray collected_at 2026-04-30 21:19:10