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I. Basic Information for CVE-2026-34752
Vulnerability Information

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Vulnerability Title
Haraka affected by DoS via `__proto__` email header
Source: NVD (National Vulnerability Database)
Vulnerability Description
Haraka is a Node.js mail server. Prior to version 3.1.4, sending an email with __proto__: as a header name crashes the Haraka worker process. This issue has been patched in version 3.1.4.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未捕获的异常
Source: NVD (National Vulnerability Database)
Vulnerability Title
Haraka 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Haraka是Haraka开源的一款SMTP电子邮件服务器。 Haraka 3.1.4之前版本存在安全漏洞,该漏洞源于发送包含__proto__:作为标头名称的电子邮件会导致工作进程崩溃。
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
VendorProductAffected VersionsCPESubscribe
harakaHaraka < 3.1.4 -
II. Public POCs for CVE-2026-34752
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III. Intelligence Information for CVE-2026-34752
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IV. Related Vulnerabilities
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