CVE-2026-25142

CRITICAL
2026-02-02 [email protected] GHSA-9p4w-fq8m-2hp7
10.0
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 22:01 vuln.today
Patch Released
Feb 18, 2026 - 14:34 nvd
Patch available
PoC Detected
Feb 18, 2026 - 14:34 vuln.today
Public exploit code
CVE Published
Feb 02, 2026 - 23:16 nvd
CRITICAL 10.0

Tags

RCE Sandboxjs

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.

Analysis

Sandbox escape in SandboxJS before 0.8.27 via __lookupGetter__ prototype chain access. CVSS 10.0 — complete sandbox bypass. …

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Remediation

Within 24 hours: Identify all systems and applications using SandboxJS and their version numbers; isolate affected systems from production if they process untrusted code. Within 7 days: Upgrade SandboxJS to version 0.8.27 or later across all affected applications and conduct testing in staging environments. …

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Priority Score

70
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +50
POC: +20

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CVE-2026-25142 vulnerability details – vuln.today
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