CVE-2026-73414 Shescape: Shell injection via unescaped parentheses on Windows with CMD

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...

CVE-2026-73414

Shescape (JavaScript library) contains a vulnerability in getEscapeFunction (src/internal/win/cmd.js) where it fails to escape '(' and ')' when using escape/escapeAll on Windows with CMD or with shell: true when CMD is default. An attacker-controlled argument can break out of a parenthesized CMD ...

Shescape: Shell injection via unescaped parentheses on Windows with CMD

Impact This impacts users of Shescape on Windows that explicitly configure shell to CMD, or true with the default shell being CMD, using the escape and escapeAll APIs. An attacker may be able to achieve shell injection depending on the original command. javascript import as cp from...

GHSA-W4HW-QCX7-56PR Shescape: Shell injection via unescaped parentheses on Windows with CMD

Impact This impacts users of Shescape on Windows that explicitly configure shell to CMD, or true with the default shell being CMD, using the escape and escapeAll APIs. An attacker may be able to achieve shell injection depending on the original command. javascript import as cp from...