Stale-approval exposure on deprecated router

Polymarket's assessment for RD-F-168 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

CTFExchange V1 (0x4bFb41d5) operationally active (1M+ txs) as of April 29, 2026. V1 described as sunset but still processing Register Token txs. Users who approved V1 for ERC-1155 positions have not been explicitly advised to revoke in findable docs. No revoke-notice mechanism found.

Sources #

Docs
April 28 upgrade article — V1 orderbook cleared; no explicit revoke-approvals advisory foundpolymarket-upgrade-helpretrieved 2026-04-29
Etherscan
CTFExchange V1 — still active April 29, 2026; 1,048,775 total transactions0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982Eretrieved 2026-04-29

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 polymarket factor RD-F-168 score yellow collected_at 2026-04-29 16:25:39