SiYuan is a personal knowledge management system. In versions prior to 3.5.4, the markdown feature allows unrestricted server side html-rendering which allows arbitrary file read (LFD). Version 3.5.4 fixes the issue.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-cv54-7wv7-qxcw SiYuan vulnerable to Arbitrary file Read / SSRF
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 21 Jan 2026 05:15:00 +0900

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 20 Jan 2026 17:45:00 +0900

Type Values Removed Values Added
First Time appeared Siyuan
Siyuan siyuan
Vendors & Products Siyuan
Siyuan siyuan

Tue, 20 Jan 2026 05:00:00 +0900

Type Values Removed Values Added
Description SiYuan is a personal knowledge management system. In versions prior to 3.5.4, the markdown feature allows unrestricted server side html-rendering which allows arbitrary file read (LFD). Version 3.5.4 fixes the issue.
Title SiYuan vulnerable to arbitrary file read
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 7.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-01-20T20:05:16.346Z

Reserved: 2026-01-16T15:46:40.843Z

Link: CVE-2026-23850

cve-icon Vulnrichment

Updated: 2026-01-20T20:04:02.837Z

cve-icon NVD

Status : Received

Published: 2026-01-19T20:15:49.533

Modified: 2026-01-19T20:15:49.533

Link: CVE-2026-23850

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-20T17:40:47Z

Weaknesses