CVE-2026-25142

CriticalCVSS 10.0/10Last modified Jun 17, 2026

Description

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.27, SanboxJS does not properly restrict __lookupGetter__ which can be used to obtain prototypes, which can be used for escaping the sandbox / remote code execution. This vulnerability is fixed in 0.8.27.

Metrics

CVSS 3.1 10.0/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-94 CWE-1321

Affected software

No affected versions have been published.

Timeline

Published: Feb 2, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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