Improper Encoding or Escaping of Output Affecting shescape package, versions <2.1.14>=3.0.0 <3.0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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-18752076
- published13 Aug 2026
- disclosed12 Aug 2026
- creditUnknown
Introduced: 12 Aug 2026
NewCVE-2026-73411 (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 Encoding or Escaping of Output via improper escaping in the getEscapeFunction function. An attacker can access sensitive home-directory information and potentially alter the target location of commands by supplying crafted input such as :~ when the escape or escapeAll APIs are used on Unix systems with the shell set to dash, or with shell set to true when Dash is the default, and the result is interpolated into an assignment prefixed to a command.