CVE-2026-25992
High
Description
SiYuan is a personal knowledge management system. Prior to 3.5.5, the /api/file/getFile endpoint uses case-sensitive string equality checks to block access to sensitive files. On case-insensitive file systems such as Windows, attackers can bypass restrictions using mixed-case paths and read protected configuration files. This vulnerability is fixed in 3.5.5.
SeverityHigh
CVSS7.5
Exploit probability—
ProductB3log Siyuan
PublishedFeb 10, 2026
First seenFeb 10, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- b3log siyuan3.5.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| b3log siyuan | v < 3.5.5 | 3.5.5 |
| github.com/siyuan-note/siyuan/kernelGo | v ≤ 0.0.0-20260126094835-d5d10dd41b0c, No range specified | — |
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