Unrated severityNVD Advisory· Published Mar 6, 2026· Updated Mar 6, 2026
TinyWeb: Integer Overflow in `_Val` (HTTP Request Smuggling)
CVE-2026-28497
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.
Affected products
1- Range: < 2.03
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- github.com/maximmasiutin/TinyWeb/commit/d2edd0322c3d74beee0a6c0191299b8946695d4emitrex_refsource_MISC
- github.com/maximmasiutin/TinyWeb/security/advisories/GHSA-rp8j-cx7r-mw9fmitrex_refsource_CONFIRM
News mentions
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