Stale-approval exposure on deprecated router

OpenEden'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 #

V1 vault (0xad6250f0) is deprecated per docs. Users who approved the V1 vault retain stale approvals. Migration announcement (Nov 2023) did not describe on-chain revocation of user approvals to V1. No active allowance scan performed. Yellow: stale approvals likely exist but risk is mitigated by V1 having no active TVL.

Sources #

URL
Migration announcement — no V1 approval revocationMedium migration announcement Nov 2023 — V2 migration described; no revocation of V1 user approvals mentionedretrieved 2026-05-16
Docs
OpenEden docs — V1 vault deprecateddocs.openeden.com/tbill/smart-contract-addresses — V1 vault listed as deprecatedretrieved 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 openeden factor RD-F-168 score yellow collected_at 2026-05-16 10:11:45