Security context

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

multiversx/mx-chain-vm-go
master @ 08050b8
42
Fixes
0
CVEs
HIGH
Peak severity
42.1%
Coverage
Highlights
Auth Bypass: 18 prior fixes. Scrutinize any change in this area.
arwen/host/execution.go: most-fixed (9 issues). Treat as high-risk during review.
39 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.

Auth Bypass: Smart contract administration operations (such as upgrades, deletions, and direct callback invocations) frequently bypass critical permission and state-gating checks, permitting unauthorized contract modification or state corruption.
Sandbox Escape: Missing VM type validations and inadequate resource state/memory isolation during same-context or destination-context contract execution allow callers to cross VM security boundaries or inherit polluted state.
Cryptographic Issues: Flawed logic in cryptographic APIs—such as inverted curve-membership validation checks or neglecting to verify if elliptic curve points lie on the target curve—permits invalid signatures or point operations to succeed.