SiYuan before v3.7.4 fails to properly validate publish access for encrypted notebooks, treating them as publicly accessible by default. Anonymous readers can enumerate and retrieve fully decrypted document content from unlocked encrypted notebooks through the publish API without authentication or key material.
History

Fri, 14 Aug 2026 23:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 14 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared B3log
B3log siyuan
CPEs cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
Vendors & Products B3log
B3log siyuan

Thu, 13 Aug 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Siyuan
Siyuan siyuan
Vendors & Products Siyuan
Siyuan siyuan

Wed, 12 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Description SiYuan before v3.7.4 fails to properly validate publish access for encrypted notebooks, treating them as publicly accessible by default. Anonymous readers can enumerate and retrieve fully decrypted document content from unlocked encrypted notebooks through the publish API without authentication or key material.
Title SiYuan before v3.7.4 Authentication Bypass via Encrypted Notebooks
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-08-12T19:07:38.239Z

Updated: 2026-08-14T22:00:32.455Z

Reserved: 2026-08-10T15:10:15.963Z

Link: CVE-2026-72789

cve-icon Vulnrichment

Updated: 2026-08-14T22:00:20.778Z

cve-icon NVD

Status : Deferred

Published: 2026-08-12T20:17:50.270

Modified: 2026-08-26T16:56:50.830

Link: CVE-2026-72789

cve-icon Redhat

No data.