MAL-2026-6347 Malicious code in wagmi_util (npm)

Package wagmi_util impersonates the popular wagmi package: it copies wagmi's tagline ("React Hooks for Ethereum"), re-exports wagmi's full React-hooks public API (WagmiProvider, useConnect, useWalletClient, useSignMessage, useSendTransaction, useWriteContract, etc.), and links to wagmi.sh in JSDoc — while being published by an unrelated author with no legitimate wagmi_util package existing under the wevm namespace. The package.json declares a runtime dependency on [email protected], but no source file in the package imports sync-external; every internal use of useSyncExternalStoreWithSelector imports the legitimate use-sync-external-store/shim/with-selector.js instead. Installing wagmi_util therefore silently pulls [email protected] into the installer's dependency tree even though the wrapper's own code never loads it. The wrapper itself is clean re-exports of wagmi; the attack surface is the unused-but-pinned transitive, which a developer choosing a wagmi-adjacent utility would not expect to receive.