CVE-2026-41894 Details
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.
A path traversal vulnerability has been identified in SiYuan versions prior to 3.6.5. The issue arises from a redundant URL decoding operation in the 'serveExport' function, which can be exploited by authenticated attackers to access sensitive files. By using double URL encoding, attackers can traverse directories and read various workspace files, including the complete SQLite database, kernel log, and all user documents.
Users can upgrade to SiYuan version 3.6.5 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 24, 2026CISA-ADP
Assessed Apr 27, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hjh7-r5w8-5872 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/siyuan-note/siyuan/commit/bb481e1290c4a34255652ede85a546504505d2a7 | [email protected] | Source CodeVendor |
| https://github.com/siyuan-note/siyuan/releases/tag/v3.6.5 | [email protected] | Release NotesVendor |
| https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hjh7-r5w8-5872 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| SiYuan | <= 3.6.4 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 27, 2026 | CVE Modified | CISA-ADP |
| Apr 24, 2026 | New CVE Received | [email protected] |