Fallback behavior on oracle failure
Hyperlane's assessment for RD-F-051 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Core ISM has no oracle to fail. IGP StorageGasOracle has no fallback — stale rates affect gas estimates but not message validity. ERC4626 Warp Routes have no explicit fallback on vault failure; the vault address is set at construction with no admin-replaceable wrapper; redeployment is required if the vault becomes insolvent.
Sources #
- GitHubTokenRouter.sol — Hyperlane monorepohyperlane-monorepo/solidity/contracts/token/libs/TokenRouter.sol — no fallback mechanism in token transfer pathretrieved 2026-05-17
- HypERC4626Collateral.sol — Hyperlane monorepoHypERC4626Collateral.sol — vault address as constructor param, no admin setter observableretrieved 2026-05-17
Methodology #
Identify the declared fallback behavior (pause, secondary source, last-known-price, revert) when the primary oracle reverts or reports a stale value.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol hyperlane factor RD-F-051 score yellow collected_at 2026-05-16 23:03:56