CVE-2021-28794: Shellcheck Project Shellcheck

Critical severity, CVSS 9.8. EPSS: 1.8% chance of exploitation in the next 30 days.

The unofficial ShellCheck extension before 0.13.4 for Visual Studio Code mishandles shellcheck.executablePath.

Affected products

• Shellcheck Project Shellcheck: before 0.13.4 (fixed in 0.13.4)

Published 2021-03-18. Last modified 2026-06-17.