CVE-2026-25586criticalCWE-74

CVE-2026-25586: falha crítica em nyariv SandboxJS

SandboxJS has a Sandbox Escape via Prototype Whitelist Bypass and Host Prototype Pollution

Publicada em

Seguir esta CVE+ Monitorar SandboxJS+ Monitorar @nyariv/sandboxjs

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

28Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 10epss 0.7%
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, a sandbox escape is possible by shadowing hasOwnProperty on a sandbox object, which disables prototype whitelist enforcement in the property-access path. This permits direct access to __proto__ and other blocked prototype properties, enabling host Object.prototype pollution and persistent cross-sandbox impact. This vulnerability is fixed in 0.8.29.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Produtos afetados
nyariv · SandboxJS
CVEs relacionadas — nyariv SandboxJS

No mesmo produto, das mais perigosas para as menos.

CVE-2026-23830CRITICALSandboxJS has Sandbox Escape via Unprotected AsyncFunction ConstructorEPSS 1.2%CVE-2026-25142CRITICALSandboxJS Prototype Pollution -> Sandbox Escape -> RCEEPSS 1.2%CVE-2026-25520CRITICALSandboxJS has a Sandbox EscapeEPSS 0.9%CVE-2026-25587CRITICALSandboxJS has a Sandbox EscapeEPSS 0.7%CVE-2026-25881CRITICAL@nyariv/sandboxjs has host prototype pollution from sandbox via array intermediary (sandbox escape)EPSS 0.6%CVE-2026-34208CRITICALSandboxJS: Sandbox integrity escapeEPSS 0.6%