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.
Configurations

Configuration 1 (hide)

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

History

30 Jan 2026, 15:35

Type Values Removed Values Added
References () https://github.com/siyuan-note/siyuan/blob/master/kernel/model/file.go#L1035 - () https://github.com/siyuan-note/siyuan/blob/master/kernel/model/file.go#L1035 - Product
References () https://github.com/siyuan-note/siyuan/blob/v3.4.2/kernel/api/filetree.go#L799-L886 - () https://github.com/siyuan-note/siyuan/blob/v3.4.2/kernel/api/filetree.go#L799-L886 - Product
References () https://github.com/siyuan-note/siyuan/commit/b2274baba2e11c8cf8901b0c5c871e5b27f1f6dd - () https://github.com/siyuan-note/siyuan/commit/b2274baba2e11c8cf8901b0c5c871e5b27f1f6dd - Patch
References () https://github.com/siyuan-note/siyuan/commit/f8f4b517077b92c90c0d7b51ac11be1b34b273ad - () https://github.com/siyuan-note/siyuan/commit/f8f4b517077b92c90c0d7b51ac11be1b34b273ad - Patch
References () https://github.com/siyuan-note/siyuan/issues/16860 - () https://github.com/siyuan-note/siyuan/issues/16860 - Issue Tracking, Patch
References () https://github.com/siyuan-note/siyuan/security/advisories/GHSA-cv54-7wv7-qxcw - () https://github.com/siyuan-note/siyuan/security/advisories/GHSA-cv54-7wv7-qxcw - Exploit, Patch, Vendor Advisory
First Time B3log
B3log siyuan
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
CPE cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*

19 Jan 2026, 20:15

Type Values Removed Values Added
New CVE

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')