CVE-2026-34208
SandboxJS: Sandbox integrity escape
Severidad por fuente
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD, GHSA.
Descripción
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.36, SandboxJS blocks direct assignment to global objects (for example Math.random = ...), but this protection can be bypassed through an exposed callable constructor path: this.constructor.call(target, attackerObject). Because this.constructor resolves to the internal SandboxGlobal function and Function.prototype.call is allowed, attacker code can write arbitrary properties into host global objects and persist those mutations across sandbox instances in the same process. This vulnerability is fixed in 0.8.36.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| npm::GitHub Security Advisory npm | @nyariv/sandboxjs | 0.8.36 |