Vulnerability Description
SiYuan is an open-source personal knowledge management system. Prior to 3.6.5, the fix for CVE-2026-30869 only added a denylist check (IsSensitivePath) but did not address the root cause — a redundant url.PathUnescape() call in serveExport(). An authenticated attacker can use double URL encoding (%252e%252e) to traverse directories and read arbitrary workspace files including the full SQLite database (siyuan.db), kernel log, and all user documents. This vulnerability is fixed in 3.6.5.
Related Weaknesses (CWE)
References
- https://github.com/siyuan-note/siyuan/commit/bb481e1290c4a34255652ede85a54650450
- https://github.com/siyuan-note/siyuan/releases/tag/v3.6.5
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hjh7-r5w8-5872
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hjh7-r5w8-5872
FAQ
What is CVE-2026-41894?
CVE-2026-41894 is a documented vulnerability. SiYuan is an open-source personal knowledge management system. Prior to 3.6.5, the fix for CVE-2026-30869 only added a denylist check (IsSensitivePath) but did not address the root cause — a redundant...
How severe is CVE-2026-41894?
CVSS scoring is not yet available for CVE-2026-41894. Check NVD for updates.
Is there a patch for CVE-2026-41894?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.