Circuit breaker on price deviation

Compound V3 (Comet)'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 circuit breaker on price deviation. Only check is price <= 0 (BadPrice revert). No maximum-deviation threshold, no cross-source comparison, no pausing on extreme price movement.

Detail #

DeFiScan: 'The protocol does not validate asset prices returned by Chainlink.' Comet.sol getPrice() source confirmed: only validation is 'if (price <= 0) revert BadPrice()'. A 50% oracle error would be silently accepted and used for liquidation calculations.

Sources #

URL
DeFiScan — no fallback oracle mechanismDeFiScan Compound V3 oracle sectionretrieved 2026-04-27
GitHub
Comet.sol oracle validationComet.sol getPrice() — only price <= 0 checkretrieved 2026-04-27

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 compound-v3 factor RD-F-057 score yellow collected_at 2026-04-28 00:20:50