Improper Neutralization Affecting shescape package, versions <2.1.14>=3.0.0 <3.0.1
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Test your applications- Snyk IDSNYK-JS-SHESCAPE-18319518
- published26 Jul 2026
- disclosed24 Jul 2026
- creditoran-s
Introduced: 24 Jul 2026
New CVE NOT AVAILABLE CWE-150 (opens in a new tab)How to fix?
Upgrade shescape to version 2.1.14, 3.0.1 or higher.
Overview
shescape is a simple shell escape library
Affected versions of this package are vulnerable to Improper Neutralization via the escape or escapeAll APIs when processing untrusted input containing parentheses on Windows systems configured to use CMD as the shell. An attacker can execute arbitrary commands by injecting specially crafted input that is not properly escaped. This is only exploitable if the application is running on Windows and explicitly configures the shell to CMD or relies on CMD as the default shell.
Workaround
This vulnerability can be mitigated by removing all instances of ( and ) from untrusted inputs.