VULNERABILITY INTELLIGENCE

CVE-2026-28497

CVSS score9.1 CRITICAL
EPSS probability0.53%
CISA KEVNot currently listed
Published2026-03-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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.

Weakness classification

  • security-advisories@github.com: CWE-190
  • nvd@nist.gov: CWE-190

Primary references