Vulnerability details

CVE-2026-33669

siyuan-note siyuan

SiYuan has Arbitrary Document Reading within the Publishing Service

CVSS 3.1

9.8Critical

Official 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.

CVSS scores

Score	Version	Source	Vector
9.8Critical	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
siyuan-note	siyuan	< 3.6.2	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-34xj-66v3-6j83 x_refsource_CONFIRM

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Details

Published: 2026-03-27
Last updated: 2026-03-27
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.53%

Probability of exploitation in 30 days

45.1%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-125
Out-of-bounds Read