CVE-2026-26954
CVE-2026-26954
10.0
CriticalPublished:
Last updated:
Source:security-advisories@github.com
Analyzed
Weakness (CWE)
CVSS Vector
v3.1- Attack Vector
- Network
- Attack Complexity
- Low
- Privileges Required
- None
- User Interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
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.
References
security-advisories@github.com
https://github.com/nyariv/SandboxJS/security/advisories/GHSA-6r9f-759j-hjgv134c704f-9b21-4f2e-91b3-4a467353bcc0
https://github.com/nyariv/SandboxJS/security/advisories/GHSA-6r9f-759j-hjgv