CVE-2026-23850 | THREATINT

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.

PUBLISHED Reserved 2026-01-16 | Published 2026-01-19 | Updated 2026-01-19 | Assigner GitHub_M

HIGH: 7.8CVSS: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

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

< 3.5.4

affected

References

github.com/...siyuan/security/advisories/GHSA-cv54-7wv7-qxcw

github.com/siyuan-note/siyuan/issues/16860

github.com/...ommit/b2274baba2e11c8cf8901b0c5c871e5b27f1f6dd

github.com/...ommit/f8f4b517077b92c90c0d7b51ac11be1b34b273ad

github.com/...n-note/siyuan/blob/master/kernel/model/file.go

github.com/...note/siyuan/blob/v3.4.2/kernel/api/filetree.go

cve.org (CVE-2026-23850)

nvd.nist.gov (CVE-2026-23850)

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