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CVE-2026-25142
Published: Feb 2, 2026
Modified: Feb 4, 2026
PUBLISHED
CVSS v3.1
10.0
CRITICAL
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.
| Vendor | Product | Versions |
|---|---|---|
nyariv | SandboxJS | affected < 0.8.27 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 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
References
https://github.com/nyariv/SandboxJS/security/advisories/GHSA-9p4w-fq8m-2hp7
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