CVE-2026-44723 Vowpal Wabbit: Shell injection via crafted PR title in python_checks.yml allows arbitrary command execution on CI runner

Vowpal Wabbit is a machine learning system. The workflow .github/workflows/pythonchecks.yml embeds $ github.event.pullrequest.title directly inside double-quoted bash strings in four separate steps across four jobs, each passing it as a CLI argument to the Python test script...