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I. Basic Information for CVE-2026-28497
Vulnerability Information

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Vulnerability Title
TinyWeb: Integer Overflow in `_Val` (HTTP Request Smuggling)
Source: NVD (National Vulnerability Database)
Vulnerability Description
TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. Prior to version 2.03, an integer overflow vulnerability in the string-to-integer conversion routine (_Val) allows an unauthenticated remote attacker to bypass Content-Length restrictions and perform HTTP Request Smuggling. This can lead to unauthorized access, security filter bypass, and potential cache poisoning. The impact is critical for servers using persistent connections (Keep-Alive). This issue has been patched in version 2.03.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数溢出或超界折返
Source: NVD (National Vulnerability Database)
Vulnerability Title
TinyWeb 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TinyWeb是Konstantin Belyalov个人开发者的一个简单且轻量级 HTTP 服务器。 TinyWeb 2.03之前版本存在环境问题漏洞,该漏洞源于字符串到整数转换例程存在整数溢出,可能导致绕过Content-Length限制并执行HTTP请求夹带攻击。
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
maximmasiutinTinyWeb < 2.03 -
II. Public POCs for CVE-2026-28497
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III. Intelligence Information for CVE-2026-28497
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