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...

CVE-2026-44723

CVE-2026-44723 affects Vowpal Wabbit. The issue arises in the GitHub workflow .github/workflows/python_checks.yml where the PR title ({{ github.event.pull_request.title }}) is directly embedded inside double-quoted bash strings in four steps across four jobs, passing it as a CLI argument to run_t...