Highlights
Auth Bypass: 15 prior fixes. Scrutinize any change in this area.
x/evm: most-fixed (4 issues). Treat as high-risk during review.
34 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: Insecure handling of delegatecall operations allowed callers to bypass VM sender context validation and masquerade as privileged internal system modules.
Auth Bypass: Cosmos SDK authz module integration allowed attackers to bypass standard transaction boundaries and execute arbitrary MsgEthereumTx or initiate deep recursive execution paths.
Denial of Service: Lack of resource boundaries and validation of arguments in precompiled EVM contracts allowed out-of-bounds panics, resource exhaustion, and standard SDK out-of-gas errors to crash the entire validator node instead of returning VM execution errors.