CRITICALCVE-2026-28497Published Modified CNA GitHub_M
CVE-2026-28497: TinyWeb: Integer Overflow in `_Val` (HTTP Request Smuggling)
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.
Metrics
- CVSS v4.0
- 9.3
- Severity
- CRITICAL
- Fixed in
- —
- Affected Products
- 1
Affected packages
- maximmasiutin / TinyWeb< 2.03
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N