Improper Neutralization Affecting shescape package, versions <2.1.14>=3.0.0 <3.0.1
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JS-SHESCAPE-18319526
- published26 Jul 2026
- disclosed24 Jul 2026
- creditoran-s
Introduced: 24 Jul 2026
New CVE NOT AVAILABLE CWE-155 (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 in the escape or escapeAll process when used with Zsh as the shell, especially if the Zsh options EXTENDED_GLOB or MAGIC_EQUAL_SUBST are enabled. An attacker can obtain sensitive information about files and directories by supplying crafted input that leverages home directory expansion or extended glob syntax. This is only exploitable if the application is configured to use Zsh as the shell and the relevant Zsh options are enabled.
Workaround
This vulnerability can be mitigated by refraining from using Zsh, disabling the EXTENDED_GLOB option, or removing all instances of ^, #, and ~ from untrusted inputs.