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CVE-2026-32749— SiYuan importSY/importZipMd: Path Traversal via multipart filename enables arbitrary file write

Quick assessment

Affected
siyuan-note siyuan
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SiYuan是SiYuan开源的一个隐私至上的个人知识管理系统。 SiYuan 3.6.0及之前版本存在安全漏洞，该漏洞源于对上传文件路径清理不当，可能导致管理员将文件写入任意位置，包括系统路径，从而引发远程代码执行。

CVSS 7.6 · High EPSS 0.59% · P47
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I. Basic Information for CVE-2026-32749

Vulnerability Information
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Vulnerability Title
SiYuan importSY/importZipMd: Path Traversal via multipart filename enables arbitrary file write
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan is a personal knowledge management system. In versions 3.6.0 and below, POST /api/import/importSY and POST /api/import/importZipMd write uploaded archives to a path derived from the multipart filename field without sanitization, allowing an admin to write files to arbitrary locations outside the temp directory - including system paths that enable RCE. This can lead to aata destruction by overwriting workspace or application files, and for Docker containers running as root (common default), this grants full container compromise. This issue has been fixed in version 3.6.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
SiYuan 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SiYuan是SiYuan开源的一个隐私至上的个人知识管理系统。 SiYuan 3.6.0及之前版本存在安全漏洞，该漏洞源于对上传文件路径清理不当，可能导致管理员将文件写入任意位置，包括系统路径，从而引发远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
siyuan-note siyuan < 3.6.1 -

II. Public POCs for CVE-2026-32749

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7472 chars
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III. Intelligence Information for CVE-2026-32749

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Patches & Fixes for CVE-2026-32749 (1)

Vendor Advisories for CVE-2026-32749 (1)

Vendor Pages for CVE-2026-32749 (1)

Same Patch Batch · siyuan-note · 2026-03-19 · 5 CVEs total

CVE-2026-32747 6.8 MEDIUM SiYuan: Incomplete sensitive path blocklist in globalCopyFiles allows reading /proc and Do
CVE-2026-32750 6.8 MEDIUM SiYuan importStdMd: unvalidated localPath imports arbitrary host directories as persistent
CVE-2026-32751 SiYuan Vulnerable to Remote Code Execution via Stored XSS in Notebook Name - Mobile Interf
CVE-2026-32815 SiYuan: Cross-Origin WebSocket Hijacking via Authentication Bypass — Unauthenticated Infor

IV. Related Vulnerabilities

Same product: siyuan
Same vendor: siyuan-note
Same weakness: CWE-73

V. Comments for CVE-2026-32749

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