CVE-2026-41894
SiYuan: Incomplete Fix Bypass for CVE-2026-30869: Path Traversal via Double URL Encoding in `/export/` Endpoint
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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 | CWE-22 |
| Vendor | siyuan-note |
| Product | siyuan |
| Published | Apr 24, 2026 |
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Affected Versions
siyuan-note / siyuan
< 3.6.5