CVE-2026-25142
Critical · 10.0CVSS
10.0
EPSS
1.2%
Published
Feb 2, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @nyariv/sandboxjs | 0 | 0.8.27 |
Related vulnerabilities
- GHSA-9p4w-fq8m-2hp7 SandboxJS Vulnerable to Prototype Pollution -> Sandbox Escape -> RCE Same vulnerability
- CVE-2026-43898 SandboxJS is a JavaScript sandboxing library. Also affects @nyariv/sandboxjs
- GHSA-g8f2-4f4f-5jqw SandboxJS has a sandbox escape via Function.caller leakage of internal call op Also affects @nyariv/sandboxjs
- CVE-2026-34208 SandboxJS is a JavaScript sandboxing library. Also affects @nyariv/sandboxjs
- CVE-2026-34217 SandboxJS is a JavaScript sandboxing library. Also affects @nyariv/sandboxjs
- CVE-2026-34211 SandboxJS is a JavaScript sandboxing library. Also affects @nyariv/sandboxjs
- GHSA-hg73-4w7g-q96w SandboxJS: Sandbox Escape via Prop Object Leak in New Handler Also affects @nyariv/sandboxjs
- GHSA-8pfc-jjgw-6g26 SandboxJS: Stack overflow DoS via deeply nested expressions in recursive descent parser Also affects @nyariv/sandboxjs