Stale-approval exposure on deprecated router

crvUSD (Curve Stablecoin)'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 #

crvUSD system does not have a traditional user-facing router contract with approval flows. No deprecated router contracts with outstanding user approvals found. USDM PegKeeper wind-down is a Curve-owned contract, not a user-approved router. No stale-approval hygiene gap identified.

Sources #

Governance
Kill USDM Pool Gauges governance proposalUSDM deprecation is governance-voted wind-down of a protocol-owned contract, not a user-router approval surfaceretrieved 2026-05-16

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 crvusd factor RD-F-168 score green collected_at 2026-05-16 19:09:40