Wire · technology
Isolated-vm Flaw Lets Sandboxed JavaScript Escape to Host for Potential RCE
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Cybersecurity
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Fusion42 · 20 August 2026 · Fusion42 review
A critical security flaw in the isolated-vm Node.js library allowed sandboxed JavaScript to escape and potentially execute remote code on the host. The vulnerability has been patched in versions 6.2.0 and 7.0.1 after affecting all prior versions up to 7.0.0.
This Wire brief sits within Fusion42's coverage of Cybersecurity.
◆ ◆ The Wire takeaway
Your Node.js security tools must handle sandbox escapes as a top priority now. Malicious code can break isolated-vm boundaries, so update or replace vulnerable libraries immediately.
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1 source · 20 Aug 2026
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Cybersecuritynodejssecurity-flawsandbox-escapercevulnerabilitypatch