Stale-approval exposure on deprecated router
Ethena's assessment for RD-F-168 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
EthenaMinting V1 replaced by V2 in July 2024. EthenaMinting uses EIP-712 order signing model (not blanket approve/allowance model) for the core mint/redeem flow. Stale allowances to V1 are therefore minimal by design. No confirmed stale approval issue identified.
Sources #
- DocsMint and Redeem Contract V2 — 'Limits adjusted using Ethena Dev multi-sig 0x3b0aaf...'https://docs.ethena.fi/solution-design/minting-usde/mint-and-redeem-contract-v2retrieved 2026-04-28
- EthenaMinting.sol — 'No timelock mechanism exists in this contract. Role changes and configuration updates execute immediately.'https://github.com/code-423n4/2023-10-ethena/blob/main/contracts/EthenaMinting.solretrieved 2026-04-28
Methodology #
Count the number of active user approvals (ERC-20 `allowance`) to deprecated router or protocol contracts.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol ethena factor RD-F-168 score green collected_at 2026-04-28 13:58:51