CVE-2026-33670

CRITICAL

SiYuan has directory traversal within its publishing service

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0066
EPSS Percentile 46.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-22
Status published
Products (3)
b3log/siyuan < 3.6.2
siyuan-note/siyuan 0Go
siyuan-note/siyuan < 3.6.2
Published Mar 26, 2026
Tracked Since Mar 27, 2026