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I. Basic Information for CVE-2026-4598
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function in ext/jsbn2.js when the BigInteger.modInverse implementation receives zero or negative inputs, allowing an attacker to hang the process permanently by supplying such crafted values (e.g., modInverse(0, m) or modInverse(-1, m)).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: NVD (National Vulnerability Database)
Vulnerability Title
jsrsasign 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
jsrsasign是Kenji Urushima个人开发者的一个签名验证库。 jsrsasign 11.1.1之前版本存在安全漏洞,该漏洞源于ext/jsbn2.js中bnModInverse函数处理零或负输入时存在无限循环,可能导致进程永久挂起。
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
-jsrsasign 0 ~ 11.1.1 -
II. Public POCs for CVE-2026-4598
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
kimi-k2.5 · 8040 chars
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III. Intelligence Information for CVE-2026-4598
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IV. Related Vulnerabilities
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