GHSA-wpqr-6v78-jr5g: Gemini CLI: Remote Code Execution via workspace trust and tool allowlisting bypasses

Gemini CLI had two security vulnerabilities that could allow remote code execution (running malicious code on a system). First, in headless mode (non-interactive environments like CI/CD pipelines), the tool automatically trusted workspace folders and loaded configuration files without verification, which could be exploited through malicious environment variables. Second, the `--yolo` flag bypassed tool allowlisting (restrictions on what commands can run), allowing unrestricted command execution via prompt injection (tricking the AI by hiding instructions in its input). Version 0.39.1 and later now require explicit folder trust and enforce tool allowlisting even in `--yolo` mode.