CVEvulnerability
CVE-2026-26954
10.0 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-94
Description
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.
Affected configurations
• nyariv sandboxjs (< 0.8.34)
Related
Weakness · CWE (1)
- CWE-94 Improper Control of Generation of Code weakness
References
- https://github.com/nyariv/SandboxJS/security/advisories/GHSA-6r9f-759j-hjgv Exploit, Vendor Advisory
- https://github.com/nyariv/SandboxJS/security/advisories/GHSA-6r9f-759j-hjgv Exploit, Vendor Advisory