CVE-2026-30916
March 09, 2026
Shescape is a simple shell escape library for JavaScript. Prior to 2.1.9, an attacker may be able to bypass escaping for the shell being used. This can result, for example, in exposure of sensitive information. This impacts users of Shescape that configure their shell to point to a file on disk that is a link to a link. The precise result of being affected depends on the actual shell used and incorrect shell identified by Shescape. This vulnerability is fixed in 2.1.9.
Affected Packages
shescape (NPM):
Affected version(s) >=0.1.0 <2.1.9Fix Suggestion:
Update to version 2.1.9Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
POC
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Exposure of Sensitive Information to an Unauthorized Actor
EPSS
Base Score:
0.04
