High severity · published Mar 26, 2026
CVE-2026-33670
SiYuan has directory traversal within its publishing service
7.5
CVSS
0.7%
EPSS
No
On KEV
Description
SiYuan is a personal knowledge management system. Prior to version 3.6.2, the /api/file/readDir interface was used to traverse and retrieve the file names of all documents under a notebook. Version 3.6.2 patches the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
siyuan · siyuan-note
< 3.6.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33670
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33670
Exploit
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xmw9-6r43-x9ww
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