CVE-2026-25142

SandboxJS prior to version 0.8.27 fails to properly restrict lookupGetter , enabling sandbox escape and remote code execution via prototype access (notably through Map.prototype.has). The CVE-2026-25142 issue is fixed in 0.8.27. Affected component: SandboxJS sandboxing library; root cause: insuff...

CVE-2026-25142 SandboxJS Prototype Pollution -> Sandbox Escape -> RCE

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.27, SanboxJS does not properly restrict lookupGetter which can be used to obtain prototypes, which can be used for escaping the sandbox / remote code execution. This vulnerability is fixed in 0.8.27...