Signed/unsigned arithmetic confusion
Morpho V1 (Morpho Blue + MetaMorpho)'s assessment for RD-F-018 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Morpho.sol uses uint256 throughout with explicit conversion functions (toUint128, UtilsLib.zeroFloorSub); no signed/unsigned arithmetic confusion identified in source inspection or audit findings.
Sources #
- GitHubhttps://github.com/morpho-org/morpho-blue/blob/main/src/Morpho.solretrieved 2026-04-27
Methodology #
Determine whether signed-integer conversions or comparisons where unsigned was intended exist in the deployed bytecode/source.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol morpho-v1 factor RD-F-018 score green collected_at 2026-04-30 21:19:13