CERT/CC Warns binary-parser Bug Allows Node.js Privilege-Level Code Execution
22.01.2026
17465
A flaw in the binary-parser npm package before version 2.3.0 lets attackers execute arbitrary JavaScript via unsanitized parser input.
🚨 CRITICAL ALERT: Node.js binary-parser npm Package Has Major Security Flaw
CERT/CC just dropped a bombshell warning about a serious vulnerability in the binary-parser npm package that could let attackers execute arbitrary JavaScript code at privilege level. If you're using Node.js with this package, you need to patch NOW.
The vulnerability affects all versions of binary-parser before 2.3.0 and allows attackers to inject and execute malicious JavaScript through unsanitized parser input. This isn't just some theoretical exploit - this is real-world remote code execution that could compromise entire systems.
The binary-parser package is widely used in the Node.js ecosystem for parsing binary data structures. With over 1.6 million weekly downloads, this vulnerability has massive potential impact across countless applications and services.
- • Affected versions: All versions before 2.3.0
- • Vulnerability type: Remote Code Execution (RCE)
- • Attack vector: Unsanitized parser input
- • Impact: Privilege-level JavaScript execution
- • Package: binary-parser npm package
- • Weekly downloads: 1.6+ million
Security researchers have confirmed that the flaw allows attackers to bypass input validation and execute arbitrary code with the same privileges as the Node.js process. This means if your app runs with elevated permissions, so does the attacker's code.
A flaw in the binary-parser npm package before version 2.3.0 lets attackers execute arbitrary JavaScript via unsanitized parser input.
The CERT Coordination Center (CERT/CC) has issued an official advisory urging all developers to immediately update to binary-parser version 2.3.0 or later. The fix properly sanitizes input and prevents the code injection vulnerability.
- • IMMEDIATE ACTION REQUIRED:
- • 1. Check your package.json for binary-parser
- • 2. If version < 2.3.0, update immediately
- • 3. Run npm update binary-parser
- • 4. Test your application thoroughly
- • 5. Monitor for any suspicious activity
This vulnerability highlights the critical importance of input validation in parsing libraries. The binary-parser maintainers have addressed the issue in version 2.3.0, but the window of exposure could be significant given how widely this package is used.
Security teams should be scanning their codebases and dependencies for vulnerable versions. The combination of high usage (1.6M+ weekly downloads) and the severity of the vulnerability (privilege-level RCE) makes this one of the most critical npm vulnerabilities reported this year.
#Node.js security#npm packages#RCE vulnerabilities#cybersecurity#CVE vulnerabilities
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