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I. Basic Information for CVE-2026-27452
Vulnerability Information

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Vulnerability Title
ASN.1 TypeScript Library: Decoding an INTEGER could leak the underlying ArrayBuffer
Source: NVD (National Vulnerability Database)
Vulnerability Description
ASN.1 TypeScript ESM library, including codecs for Basic Encoding Rules (BER) and Distinguished Encoding Rules (DER). In versions 11.0.5 and below, in some cases, decoding an INTEGER could leak the underlying ArrayBuffer. This issue is expected to be fixed in version 11.0.6.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
ASN.1 TypeScript Library 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ASN.1 TypeScript Library是Jonathan Wilbur个人开发者的一个TypeScript库。 ASN.1 TypeScript Library 11.0.5及之前版本存在信息泄露漏洞,该漏洞源于解码INTEGER时可能泄露底层ArrayBuffer。
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
JonathanWilburasn1-ts <= 11.0.5 -
II. Public POCs for CVE-2026-27452
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III. Intelligence Information for CVE-2026-27452
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