CVE-2026-23850
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductB3log Siyuan
PublishedJan 19, 2026
First seenJan 19, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- b3log siyuan3.5.4 or later
- github.com/siyuan-note/siyuan/kernel0.0.0-20260118092326-b2274baba2e1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| b3log siyuan | v < 3.5.4 | 3.5.4 |
| github.com/siyuan-note/siyuan/kernelGo | v < 0.0.0-20260118092326-b2274baba2e1 | 0.0.0-20260118092326-b2274baba2e1 |
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