CVE-2026-34449

Katalog CVE

CVSS 9.6 · Critical EPSS 0,80%

Kerentanan Permissive Cross-domain Security Policy with Untrusted Domains pada b3log siyuan. Skor CVSS 3.1 9.6 (Critical) menurut github.com.

Deskripsi (NVD)

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a malicious website can achieve Remote Code Execution (RCE) on any desktop running SiYuan by exploiting the permissive CORS policy (Access-Control-Allow-Origin: * + Access-Control-Allow-Private-Network: true) to inject a JavaScript snippet via the API. The injected snippet executes in Electron's Node.js context with full OS access the next time the user opens SiYuan's UI. No user interaction is required beyond visiting the malicious website while SiYuan is running. This issue has been patched in version 3.6.2.

Rincian

Terbit di NVD

31 Maret 2026

Terakhir diubah

24 Juli 2026

Status NVD

Analyzed

CVSS 3.1

9.6 (Critical), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-942: Permissive Cross-domain Security Policy with Untrusted Domains

EPSS (30 hari)

0,80% peluang dieksploitasi; lebih tinggi dari 55,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-68p4-j234-43mv exploit · advisory vendor
• https://github.com/siyuan-note/siyuan/issues/17246 issue tracking
• https://github.com/siyuan-note/siyuan/releases/tag/v3.6.2 release notes