CVE-2026-85583
SiYuan before v3.8.2 Path Traversal via symlink in file API
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
SiYuan versions before v3.8.2 contain a path traversal vulnerability in the reader-accessible file-read endpoint that follows symlinks when opening authorized asset paths. Attackers with reader role can request a logical asset under data/assets/ that is a symlink to a file outside the workspace and receive the target file bytes, bypassing workspace boundary restrictions.
| CWE | CWE-59 |
| Vendor | siyuan-note |
| Product | siyuan |
| Published | Sep 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
siyuan-note / siyuan
0 < 3.8.2