CVE-2026-33669

CRITICAL

SiYuan has Arbitrary Document Reading within the Publishing Service

Title source: cna
STIX 2.1

Description

SiYuan is a personal knowledge management system. Prior to version 3.6.2, document IDs were retrieved via the /api/file/readDir interface, and then the /api/block/getChildBlocks interface was used to view the content of all documents. Version 3.6.2 patches the issue.

References (1)

Scores

CVSS v3 9.8
EPSS 0.0002
EPSS Percentile 3.8%
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 no
Technical Impact total

Details

CWE
CWE-125
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