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.
History

Mon, 02 Feb 2026 23:15:00 +0000

Type Values Removed Values Added
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.
Title SandboxJS Prototype Pollution -> Sandbox Escape -> RCE
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-02T22:52:11.849Z

Reserved: 2026-01-29T15:39:11.820Z

Link: CVE-2026-25142

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-02T23:16:09.440

Modified: 2026-02-02T23:16:09.440

Link: CVE-2026-25142

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.