🛡️ CVE-2026-29046
🟠 CVSS 8.2 — High ⚠️ Exploit Public CWE-20 NVD
8.2
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. Prior to version 2.04, TinyWeb accepts request header values and later maps them into CGI environment variables (HTTP_*). The parser did not strictly reject dangerous control characters in header lines and header values, including CR, LF, and NUL, and did not consistently defend against encoded forms such as %0d, %0a, and %00. This can enable header value confusion across parser boundaries and may create unsafe data in the CGI execution context. This issue has been patched in version 2.04.

Details

Severity HIGH
CVSS Score 8.2
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
CWE CWE-20
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-06
Updated 2026-06-02
Modified 2026-03-16

Affected Packages

Software From version Fixed in
tinyweb — 2.04

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