Circuit breaker on price deviation
Stake DAO's assessment for RD-F-057 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
No explicit price-deviation circuit breaker (maxDeviationBps pattern) found in Morpho lending oracle adapters. BaseOracle.sol implements staleness check (revert on stale or non-positive price) but no inter-block deviation guard. Core locker path: not applicable (oracle-free). Yellow: staleness check present; no deviation circuit breaker found in source.
Sources #
- GitHubBaseOracle.sol — staleness only, no deviation circuit breakerpackages/periphery/src/lending/oracles/BaseOracle.sol — only staleness check (require updatedAt > block.timestamp - maxStale); no maxDeviationBps or price guardretrieved 2026-05-16
- Lending oracle documentation — no circuit breakerdocs.stakedao.org/lending/oracles — freshness checks described; no deviation guard mentionedretrieved 2026-05-16
Methodology #
Determine whether the protocol halts or reverts if the oracle-reported price deviates by more than X% from a reference within Y blocks.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol stake-dao factor RD-F-057 score yellow collected_at 2026-05-16 12:29:20