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CVE PROGRAM SOURCE RECORD10.0 Critical

CVE-2026-26954

SandboxJS has a Sandbox Escape

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nyariv SandboxJS

  • < 0.8.34affected

References