CVE-2026-32063: OpenClaw Improperly Neutralizes Line Breaks in systemd Unit Generation Enables Local Command Execution (Linux)

A command injection vulnerability exists in OpenClaw’s Linux systemd unit generation path. When rendering Environment= entries, attacker-controlled values are not rejected for CR/LF, and systemdEscapeArg() uses an incorrect whitespace-matching regex. This allows newline injection to break out of an Environment= line and inject standalone systemd directives (for example, ExecStartPre=). On service restart, the injected command is executed, resulting in local arbitrary command execution (local RCE) under the gateway service user.