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rubric v1.7.0

Signed/unsigned arithmetic confusion

crvUSD (Curve Stablecoin)'s assessment for RD-F-018 — scored gray on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Symbolic execution tools (Manticore, Echidna property-check) for signed/unsigned arithmetic confusion are not publicly available for Vyper. No tool run output exists.

Sources #

  • Internal
    M3a Process-Learnings: Vyper templateprocess-learnings.md Vyper template — symbolic execution not applicable to Vyperretrieved 2026-05-16

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 crvusd factor RD-F-018 score gray collected_at 2026-05-16 19:09:40