CVE-2026-25142

PoC —

CVSS 3.1

10.0 critical

EPSS

1%p64

Published

Feb 2, 2026 (Feb 2, 2026)

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.

Vendors: nyariv
Products: sandboxjs
Weakness: CWE-94, CWE-1321
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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