defirisk.co
rubric v1.7.0

Mixed-decimals math without explicit scaling

Lombard Finance's assessment for RD-F-017 — scored gray on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

LBTC uses 8 decimals; most EVM DeFi integrations use 18 decimals. Cross-decimal arithmetic risk exists in StakeAndBake, iDepositor, and PMM contracts where LBTC interacts with 18-decimal tokens. No published audit flags this as unresolved in the EVM layer. Cannot confirm safe normalization without source inspection of all arithmetic paths. Marked gray — needs curator review of cross-decimal math paths.

Sources #

  • Docs
    Lombard LBTC design docsLBTC is 8 decimals per BTC standard; cross-decimal risk in DeFi integrationsretrieved 2026-05-05

Methodology #

Determine whether shared numerator/denominator arithmetic operates over tokens with different decimals without WAD/RAY normalization or explicit decimal-adjustment.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol lombard factor RD-F-017 score gray collected_at 2026-05-05 12:03:08