The published npm package "praisonai" exports "SandboxExecutor", "CommandValidator", and "sandboxExec" as "safe command execution with restrictions." When "allowedCommands" is configured, "CommandValidator" checks only the first whitespace-delimited token of the command string. "SandboxExecutor" then passes the entire original string to "spawn("sh", ["-c", command])". With a policy that allows only "echo", this direct command is correctly rejected: but this chained command is accepted and executed: The shell executes "cat" even though "cat" is not allowlisted. This bypasses the command allowlist and can execute arbitrary shell commands with the PraisonAI process privileges when an application, CLI workflow, or agent pipeline exposes sandbox command execution to lower-trust users, prompts, or model output. The PoV is deterministic and local-only. It creates and reads only a temporary marker file.