Shescape: Shell injection via unescaped parentheses on Windows with CMD

Date Jul 24, 2026
Type Vendor advisory
Signal Critical vendor advisory
Vendor / Product npm · shescape
Critical vendor advisory

Summary

Shescape: Shell injection via unescaped parentheses on Windows with CMD

Why it matters

GitHub has published a reviewed security advisory for shescape. Prioritize it with other application dependency updates.

Operator check

Check whether shescape is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 9.2.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.