CVE-2026-5758— Mafintosh's protocol-buffers-schema is vulnerable to prototype pollution
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I. Basic Information for CVE-2026-5758
Vulnerability Information
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Vulnerability Title
Mafintosh's protocol-buffers-schema is vulnerable to prototype pollution
Source: NVD (National Vulnerability Database)
Vulnerability Description
JavaScript is vulnerable to prototype pollution in Mafintosh's protocol-buffers-schema Version 3.6.0, where an attacker may alter the application logic, bypass security checks, cause a DoS or achieve remote code execution.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
protocol-buffers-schema 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
protocol-buffers-schema是Mathias Buus个人开发者的一个JavaScript编写的Protocol Buffers模式解析器。 protocol-buffers-schema 3.6.0版本存在安全漏洞，该漏洞源于JavaScript原型污染，可能导致攻击者改变应用逻辑、绕过安全检查、造成拒绝服务或实现远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mafintosh | Protocol-buffers-schema parser | 3.6.0 ~ 3.6.1 | - |
II. Public POCs for CVE-2026-5758
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IV. Related Vulnerabilities
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