Storage-layout collision risk across upgrades

Maple Finance's assessment for RD-F-142 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Protocol uses bespoke NonTransparentProxy pattern (not OZ). Multiple versioned implementations (FixedTermLoanV400-V601, PoolManagerV100-V400) imply extensive upgrade history. Storage-layout collision checks not confirmed from public audit summaries.

Sources #

GitHub
https://github.com/maple-labs/non-transparent-proxyretrieved 2026-04-27
GitHub
https://github.com/maple-labs/address-registry/blob/main/MapleAddressRegistryETH.mdretrieved 2026-04-27

Methodology #

Determine whether the OZ upgrades-plugin or manual review flags a storage-layout collision risk between implementation versions.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol maple-finance factor RD-F-142 score yellow collected_at 2026-04-27 05:38:08