CRITICALCVE-2026-26954Published Modified CNA GitHub_M
CVE-2026-26954: SandboxJS has a Sandbox Escape
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.34, it is possible to obtain arrays containing Function, which allows escaping the sandbox. Given an array containing Function, and Object.fromEntries, it is possible to construct {[p]: Function} where p is any constructible property. This vulnerability is fixed in 0.8.34.
Metrics
- CVSS v3.1
- 10.0
- Severity
- CRITICAL
- Fixed in
- —
- Affected Products
- 1
Affected packages
- nyariv / SandboxJS< 0.8.34
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H