CVE-2026-22781: ritlabs tinyweb

csirt@kutim:~/threat-intel/cve/CVE-2026-22781

CVSS 9.8 · Critical EPSS 2,4%

Kerentanan Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') pada ritlabs tinyweb. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD: 12 Januari 2026
Terakhir diubah: 17 Juni 2026
Status NVD: Analyzed
CVSS 3.1: 9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
EPSS (30 hari): 2,4% peluang dieksploitasi; lebih tinggi dari 83,8% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
ritlabs	tinyweb	Semua versi sebelum 1.98

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/maximmasiutin/TinyWeb/commit/876b7e2887f4ea5be3e18bb2af7313f23a283c96 patch
https://github.com/maximmasiutin/TinyWeb/security/advisories/GHSA-m779-84h5-72q2 advisory pihak ketiga
https://www.masiutin.net/tinyweb-cve-2025-cgi-command-injection.html advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.