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CVE-2026-22781

🚨 CRITICAL

TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. TinyWeb HTTP Server before version 1.98 is vulnerable to OS command injection via CGI ISINDEX-style query parameters. The query param...

Published
Jan 12, 2026
Last Modified
Jan 16, 2026
Views
8
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Description

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TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. TinyWeb HTTP Server before version 1.98 is vulnerable to OS command injection via CGI ISINDEX-style query parameters. The query parameters are passed as command-line arguments to the CGI executable via Windows CreateProcess(). An unauthenticated remote attacker can execute arbitrary commands on the server by injecting Windows shell metacharacters into HTTP requests. This vulnerability is fixed in 1.98.

Affected Products (1)

ritlabs - tinyweb

Version: *

CVSS Scores

CVSS 3.1 9.8
9.8
CRITICAL
CVSS 2.0 9.8

References

github.com github.com www.masiutin.net

Additional Information

Source
security-advisories@github.com
State
Analyzed

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