CVE-2026-28497

CRITICAL
2026-03-06 [email protected]
9.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
CVE Published
Mar 06, 2026 - 04:16 nvd
CRITICAL 9.1

Tags

Integer Overflow Authentication Bypass Tinyweb

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.

Analysis

Integer overflow in TinyWeb before 2.03.

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Remediation

Within 24 hours: Identify all affected systems running Delphi for Win32. and apply vendor patches immediately. …

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Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +46
POC: 0

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CVE-2026-28497 vulnerability details – vuln.today
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