Cybersecurity researchers have disclosed multiple critical vulnerabilities in the popular vm2 Node.js library, raising serious concerns for developers and organizations that rely on sandboxed JavaScript execution.
The vulnerabilities allow attackers to escape the sandbox environment and execute arbitrary code on the underlying host system. Security experts say the flaws mainly affect applications that use vm2 to run untrusted JavaScript code in isolated environments.
Several of the reported vulnerabilities received extremely high severity scores, with some rated as critical. Researchers found that attackers could abuse weaknesses in functions related to object handling, Promise callbacks, and sandbox protections to bypass security restrictions.
The issue is especially dangerous because vm2 is widely used in developer tools, online code runners, plugin systems, and cloud-based applications. If exploited successfully, attackers may gain full control over affected servers and execute malicious commands remotely.
Researchers also noted that sandbox escape vulnerabilities in vm2 have appeared multiple times in recent years, highlighting the difficulty of securely isolating untrusted JavaScript code.
Security experts strongly recommend updating to the latest patched versions immediately and reviewing systems that depend on vm2. Organizations are also advised to monitor applications for suspicious activity and reduce exposure wherever possible.
The incident once again highlights the growing cybersecurity risks within open-source software ecosystems and dependency chains used by modern applications.
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