GHSA-9p4w-fq8m-2hp7 · Severity: critical · Ecosystem: npm — SandboxJS Vulnerable to Prototype Pollution -> Sandbox Escape -> RCE
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.
Conclusion & alert: CVE-2026-25142 is rated High Exploit Risk (67.7/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.15%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-06 | 0.10% | 0.15% | +0.06% |
| 2 | 2026-02-03 | — | 0.10% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 3.1 | CRITICAL |
|
3.9 | 6.0 | [email protected] |
GHSA-9p4w-fq8m-2hp7 · Severity: critical · Ecosystem: npm — SandboxJS Vulnerable to Prototype Pollution -> Sandbox Escape -> RCE