CVE-2026-23850
SiYuan vulnerable to arbitrary file read
- State
- Published
- Severity
- 7.8 High
- Published
- Jan 19, 2026
- Updated
- Jan 20, 2026
- Reserved
- Jan 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.8 High | 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 | GitHub_M |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-cv54-7wv7-qxcw
- https://github.com/siyuan-note/siyuan/issues/16860
- https://github.com/siyuan-note/siyuan/commit/b2274baba2e11c8cf8901b0c5c871e5b27f1f6dd
- https://github.com/siyuan-note/siyuan/commit/f8f4b517077b92c90c0d7b51ac11be1b34b273ad
- https://github.com/siyuan-note/siyuan/blob/master/kernel/model/file.go#L1035
- https://github.com/siyuan-note/siyuan/blob/v3.4.2/kernel/api/filetree.go#L799-L886
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