defirisk.co
rubric v1.7.0

UUPS _authorizeUpgrade correctly permissioned

Usual (USD0 / bUSD0 / USUAL)'s assessment for RD-F-021 — scored not_applicable on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

All core contracts use OpenZeppelin TransparentUpgradeableProxy (EIP-1967), NOT UUPS. UUPS _authorizeUpgrade gate check is structurally inapplicable. TransparentProxy authorization is gated at ProxyAdmin level (governance multisig).

Sources #

  • Internal
    00-profile.md §3 deploymentsProfile §3 deployment table — all EIP-1967 TransparentUpgradeableProxyretrieved 2026-05-17
  • Etherscan
    USD0 TransparentProxy — EtherscanUSD0 proxy — TransparentUpgradeableProxy EIP-1967 confirmedretrieved 2026-05-17

Methodology #

Determine whether the UUPS implementation defines `_authorizeUpgrade(address)` restricted to owner/admin/timelock (not open to arbitrary callers).

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usual factor RD-F-021 score not_applicable collected_at 2026-05-16 20:39:44