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Home / Vulnerability Intelligence / CVE-2026-33669

CVE-2026-33669 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: March 26, 2026

SiYuan - Information Disclosure

Published: March 26, 2026Updated: March 26, 2026Remote Exploitable

Overview

SiYuan < 3.6.2 contains an information disclosure vulnerability caused by improper access control in /api/file/readDir and /api/block/getChildBlocks interfaces, letting attackers view document contents, exploit requires no special privileges.

Severity & Score

Severity: Critical
CVSS Score: 9.8
EPSS Score: 0.0%(Probability of exploitation in next 30 days)

Impact

Attackers can view contents of all documents, leading to sensitive information disclosure.

Mitigation

Update to version 3.6.2 or later.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
Mar 26, 2026

šŸ”“ CVE-2026-33669 - Critical (9.8) 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.... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-33669/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
Mar 26, 2026

šŸ”“ CVE-2026-33669 - Critical (9.8) 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.... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-33669/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Details

CVE ID
CVE-2026-33669
Severity
Critical
CVSS Score
9.8
Type
broken_access_control
Status
new
EPSS
0.0%
Social Posts
2

CWE

  • CWE-125

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score

0.0%Probability of exploitation in the next 30 days