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CVE-2026-33669

CRITICAL CVSS 3.1: 7.5 EPSS 0.04%
Updated Mar 30, 2026
B3Log
Parameter Value
CVSS 7.5 (CRITICAL)
Affected Versions before 3.6.2
Fixed In 3.6.2
Type CWE-125 (Out-of-bounds Read)
Vendor B3Log
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
B3log Siyuan
cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
3.6.2