CVE-2026-41894

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.

• CWE-22

• https://github.com/siyuan-note/siyuan/commit/bb481e1290c4a34255652ede85a546504505d2a7
• 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

Published

Apr 24, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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