CVE-2026-26954

Published: Mar 13, 2026Modified: Jun 17, 2026

10.0

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 6.0

Source: security-advisories@github.com (Secondary)

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 (1)

Products: Nyariv: Sandboxjs

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Nyariv Sandboxjs	Before 0.8.34

Related CWEs

Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

References (2)

https://github.com/nyariv/SandboxJS/security/advisories/GHSA-6r9f-759j-hjgv

Source: security-advisories@github.com

ExploitVendor Advisory

https://github.com/nyariv/SandboxJS/security/advisories/GHSA-6r9f-759j-hjgv

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitVendor Advisory

Timeline

No history available yet.