Circuit breaker on price deviation
Circle USYC's assessment for RD-F-057 — scored red on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
No circuit breaker on price deviation identified. Teller implementation ABI does not include a circuit-breaker or price-guard function. For an RWA NAV oracle that moves monotonically upward, this is less critical than for volatile assets, but the absence of any deviation guard leaves the protocol exposed to incorrect reporter submissions. No maxDeviationBps or priceGuard pattern confirmed.
Sources #
- EtherscanGenericNextPriceAggregator Oracle Implementation - EtherscanGenericNextPriceAggregator at 0x6DeaA761bc131Ac5f1D562EE71819E846EF11624 - no deviation guard in oracle contractretrieved 2026-05-16
- Teller Implementation ABI - EtherscanTeller implementation at 0xF8724D6b9E6fF55Bc4496fddb3437DC691CD26EB - ABI shows no circuit-breaker or price-deviation functionretrieved 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 circle-usyc factor RD-F-057 score red collected_at 2026-05-15 21:56:43