defirisk.co
rubric v1.7.0

Permissionless-pool lending oracle

USDD (Decentralized USD)'s assessment for RD-F-181 — scored not_applicable on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Not applicable. USDD is a CDP/stablecoin issuer with governance-whitelisted collateral types (TRX, sTRX, USDT) controlled by TRON DAO Reserve — not a permissionless-pool lending protocol. New collateral cannot be added by arbitrary users. PSM accepts only governance-approved stablecoins (USDT, USDC). The Rhea-Finance-class attack vector (permissionless fake pool creation to game oracle into accepting worthless tokens) does not apply.

Sources #

  • Docs
    USDD Collateral Asset Contract AddressesUSDD collateral types (TRX-A, TRX-B, TRX-C, sTRX-A, USDT-A, SA001-A) are governance-defined; contract addresses listed — not permissionlessly listedretrieved 2026-05-17
  • Internal
    USDD Protocol Profile §1 and §7Profile §1: CDP stablecoin with governance-whitelisted collateral; profile §7: no permissionless lendingretrieved 2026-05-17

Methodology #

Determine whether the lending protocol accepts spot prices from a DEX where any user can permissionlessly create new pools, without requiring a TWAP window, liquidity floor, or token-age minimum on the venue side.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usdd factor RD-F-181 score not_applicable collected_at 2026-05-17 11:34:18