CVE-2026-22781

CRITICAL

9.8

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.19.8

SeveridadeCRITICAL

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/12/2026

Ultima modificacao1/16/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

ritlabs:tinyweb

Fraquezas (CWE)

CWE-78

Referencias

https://github.com/maximmasiutin/TinyWeb/commit/876b7e2887f4ea5be3e18bb2af7313f23a283c96(security-advisories@github.com)

https://github.com/maximmasiutin/TinyWeb/security/advisories/GHSA-m779-84h5-72q2(security-advisories@github.com)

https://www.masiutin.net/tinyweb-cve-2025-cgi-command-injection.html(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.