CVE-2026-73414
Published:August 12, 2026
Updated:August 31, 2026
Shescape is a simple shell escape library for JavaScript. Prior to 2.1.14 and 3.0.1, getEscapeFunction in src/internal/win/cmd.js does not escape "(" and ")" when applications use the escape or escapeAll APIs on Windows with shell set to cmd.exe, or with shell set to true when CMD is the default. An attacker-controlled argument can break out of a parenthesized CMD construct and inject shell syntax depending on the original command, resulting in arbitrary command execution. This issue is fixed in versions 2.1.14 and 3.0.1.
Affected Packages
https://github.com/ericcornelissen/shescape.git (GITHUB):
Affected version(s) >=v0.1.0 <v2.1.14Fix Suggestion:
Update to version v2.1.14https://github.com/ericcornelissen/shescape.git (GITHUB):
Affected version(s) =v3.0.0 <v3.0.1Fix Suggestion:
Update to version v3.0.1shescape (NPM):
Affected version(s) =3.0.0 <3.0.1Fix Suggestion:
Update to version 3.0.1shescape (NPM):
Affected version(s) >=0.1.0 <2.1.14Fix Suggestion:
Update to version 2.1.14Related Resources (11)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
EPSS
Base Score:
0.52