CVE-2026-23850

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/blob/master/kernel/model/file.go#L1035	Product
https://github.com/siyuan-note/siyuan/blob/v3.4.2/kernel/api/filetree.go#L799-L886	Product
https://github.com/siyuan-note/siyuan/commit/b2274baba2e11c8cf8901b0c5c871e5b27f1f6dd	Patch
https://github.com/siyuan-note/siyuan/commit/f8f4b517077b92c90c0d7b51ac11be1b34b273ad	Patch
https://github.com/siyuan-note/siyuan/issues/16860	Issue Tracking Patch
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-cv54-7wv7-qxcw	Exploit Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-19 20:15

Updated : 2026-01-30 15:35

NVD link : CVE-2026-23850

Mitre link : CVE-2026-23850

CVE.ORG link : CVE-2026-23850

JSON object : View

Products Affected

b3log

siyuan

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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