UUPS _authorizeUpgrade correctly permissioned

Midas'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 #

Midas uses TransparentUpgradeableProxy (EIP-1967) pattern, NOT UUPS. Upgrades are controlled by the ProxyAdmin, not by _authorizeUpgrade on the implementation contract. The UUPS _authorizeUpgrade factor is architecturally not applicable to the Transparent Proxy pattern.

Sources #

Etherscan
mTBILL Token — EtherscanmTBILL proxy — TransparentUpgradeableProxy EIP-1967 pattern confirmedretrieved 2026-05-16
Etherscan
Issuance Vault Proxy — EtherscanIssuance Vault proxy — TransparentUpgradeableProxy EIP-1967 confirmedretrieved 2026-05-16

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 midas factor RD-F-021 score not_applicable collected_at 2026-05-16 09:34:55