Node.js CVE-2026-1245
MEDIUM
GHSA-m39p-34qh-rh3w
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3Blast Radius
ecosystem impact- 186 npm packages depend on binary-parser (80 direct, 108 indirect)
Ecosystem-wide dependent count for version 2.3.0.
DescriptionCVE.org
A code injection vulnerability in the binary-parser library prior to version 2.3.0 allows arbitrary JavaScript code execution when untrusted values are used in parser field names or encoding parameters. The library directly interpolates these values into dynamically generated code without sanitization, enabling attackers to execute arbitrary code in the context of the Node.js process.
AnalysisAI
Unsafe code generation in binary-parser prior to version 2.3.0 allows remote code execution when processing untrusted input for parser field names or encoding parameters. Node.js applications using vulnerable versions of the library can be compromised to execute arbitrary JavaScript with process-level privileges. A patch is available and exploitation requires no authentication or user interaction.
Technical ContextAI
Classified as CWE-94 (Code Injection). Affects the parser field names or encoding component of Binary-Parser. A code injection vulnerability in the binary-parser library prior to version 2.3.0 allows arbitrary JavaScript code execution when untrusted values are used in parser field names or encoding parameters. The library directly interpolates these values into dynamically generated code without sanitization, enabling attackers to execute arbitrary code in the context of the Node.js process.
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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Same weakness CWE-94 – Code Injection
View allSame technique Code Injection
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External POC / Exploit Code
Leaving vuln.today