CVE-2026-46403 Klever-Go KVM read-only execution can commit contract delete and upgrade side effects

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, KVM exposes ExecuteReadOnlyWithTypedArguments as a read-only execution mechanism. The hook saves the previous read-only state, sets runtime.SetReadOnlytrue, executes the destination context, and then restores t...

CVE-2026-46403

Summary (verified): Klever-Go KVM read-only execution can leak state changes via contract delete/upgrade side effects when invoked through ExecuteReadOnlyWithTypedArguments. The root cause is applying read-only as runtime state while not enforcing it in state-changing host-core paths, allowing a ...