CVE-2026-55798 Pillow: WindowsViewer.get_command() OS command injection via unescaped shell path

Pillow is a Python imaging library. Prior to 12.3.0, WindowsViewer.getcommand constructed a cmd.exe shell command by directly embedding a file path into an f-string without escaping and passed the result to subprocess.Popen..., shell=True, allowing shell metacharacters in the file path to inject...