show_snapshot.py unpickled a user-supplied path unconditionally. pickle.loads is equivalent to arbitrary code execution, so a snapshot from an untrusted source = RCE. Require an explicit --i-trust-this-file acknowledgement before calling pickle.loads, and emit a stderr warning when proceeding. Co-authored-by: Jiahui-Gu <jiahuigu@users.noreply.github.com>