Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

mezo-org/mezod

              main @ 5c008e8
            

Fixes

CVEs

CRITICAL

Peak severity

15.0%

Coverage

Highlights

Denial of Service: 34 prior fixes. Scrutinize any change in this area.

x/bridge/abci/proposal.go: most-fixed (4 issues). Treat as high-risk during review.

58 high-severity fixes in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Signature Verification Bypass: Bypassing the Ethereum signature verification Ante Handler allows attackers to forge transaction signers and execute unauthorized state transitions. Restoring this decorator is essential to preserve the integrity of EVM transactions.

Auth Bypass: Performing bridge operations without verifying permissions inside the core keeper allows attackers to bypass precompile-layer controls, creating unauthorized bridge requests and potentially draining locked assets.

Denial of Service: EVM simulation endpoints (eth_simulateV1) were vulnerable to resource exhaustion from unbounded execution loops or multi-call gas consumption, risking node CPU starvation.