CVE-2026-33670 CRITICAL

CVE-2026-33670: SiYuan has directory traversal within its publishing service

Vendor Siyuan-Note
Product siyuan
Weakness CWE-22 · Path traversal
Published March 26, 2026
Last update March 30, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the /api/file/readDir interface was used to traverse and retrieve the file names of all documents under a notebook. Version 3.6.2 patches the issue.

Key dates

02Disclosure timeline

March 26, 2026 CVE published
March 30, 2026 Record updated