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I. Basic Information for CVE-2026-5598
Vulnerability Information

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Vulnerability Title
Non-constant time comparisons risk private key leakage in FrodoKEM.
Source: NVD (National Vulnerability Database)
Vulnerability Description
Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java. This issue affects BC-JAVA: from 1.71 before 1.84.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
隐蔽时间通道
Source: NVD (National Vulnerability Database)
Vulnerability Title
Bouncy Castle Java 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bouncy Castle Java是Legion of the Bouncy Castle Inc开源的一个加密算法程序。 Bouncy Castle Java 2.17.3至1.84之前版本存在安全漏洞,该漏洞源于非恒定时间比较,可能导致FrodoKEM私钥泄露。
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
Legion of the Bouncy Castle Inc.BC-JAVA 1.71 ~ 1.84 -
II. Public POCs for CVE-2026-5598
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III. Intelligence Information for CVE-2026-5598
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IV. Related Vulnerabilities
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