Highlights
Auth Bypass: 3 prior fixes. Scrutinize any change in this area.
GitHub: most-fixed (1 issue). Treat as high-risk during review.
4 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: Flaws in contract instantiation dispatch allowed callers to bypass `deny_payment` checks on non-payable constructors, leading to unauthorized funding or state inconsistencies during contract deployment.
Auth Bypass: Failure to unconditionally revert the blockchain state upon returning a `Result::Err` allowed contract calls to fail gracefully while retaining state changes, triggering transactional inconsistency and authorization bypasses.
Logic Error: Neglecting to propagate `LangError` within `DelegateCall` invocations caused silent execution failures in delegate contexts, potentially leading to unauthorized or unverified control-flow progression.