Stale-approval exposure on deprecated router

Hyperlane'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 #

Hyperlane evolved from Abacus v1 (Dec 2022) through v2 (Jan 2023) to v3 (Oct 2023). Users who approved deprecated v1/v2 Warp Route collateral contracts may have residual unrevoked approvals. No active allowance scan performed. No revoke-notice published for deprecated routes found.

Sources #

URL
Hyperlane V2 announcementHyperlane V2 launch Jan 2023 (deprecated v1)retrieved 2026-05-17
Internal
Protocol profile lifecycle00-profile.md §2: v1 Dec 2022, v2 Jan 2023, v3 Oct 2023 lifecycle transitionsretrieved 2026-05-17

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 hyperlane factor RD-F-168 score yellow collected_at 2026-05-16 23:03:56