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CVE-2026-72806— SiYuan before v3.7.4 Authentication Bypass via Attribute View

Quick assessment

Affected
siyuan-note siyuan
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SiYuan是SiYuan团队开源的一款文档管理软件。 SiYuan 3.7.4之前版本存在授权问题漏洞，该漏洞源于FilterViewByPublishAccess过滤器未能检查发布密码保护，可能导致未经身份验证的攻击者无需提供密码即可通过调用renderAttributeView访问受密码保护的文档行，包括标题、块ID和列值。

CVSS 5.8 · Medium EPSS 0.43% · P35

Affected Version Matrix 2

VendorProduct Version RangeStatus
siyuan-note siyuan < 3.7.4 affected
3.7.4 unaffected
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I. Basic Information for CVE-2026-72806

Vulnerability Information
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Vulnerability Title
SiYuan before v3.7.4 Authentication Bypass via Attribute View
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan versions before v3.7.4 contain an authentication bypass vulnerability in the FilterViewByPublishAccess filter that fails to check publish password protection when rendering attribute views and database rows. Unauthenticated readers can access password-protected document rows including titles, block IDs, and column values by calling renderAttributeView without supplying the required password.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
SiYuan 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SiYuan是SiYuan团队开源的一款文档管理软件。 SiYuan 3.7.4之前版本存在授权问题漏洞，该漏洞源于FilterViewByPublishAccess过滤器未能检查发布密码保护，可能导致未经身份验证的攻击者无需提供密码即可通过调用renderAttributeView访问受密码保护的文档行，包括标题、块ID和列值。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
siyuan-note siyuan 0 ~ 3.7.4 -

II. Public POCs for CVE-2026-72806

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III. Intelligence Information for CVE-2026-72806

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Vendor Advisories for CVE-2026-72806 (2)

Same Patch Batch · siyuan-note · 2026-08-12 · 22 CVEs total

CVE-2026-72793 8.6 HIGH SiYuan before v3.7.4 Information Disclosure via /api/system/getConf
CVE-2026-72804 8.6 HIGH SiYuan before v3.7.4 Authentication Bypass via Graph Endpoints
CVE-2026-72789 8.6 HIGH SiYuan before v3.7.4 Authentication Bypass via Encrypted Notebooks
CVE-2026-72798 8.6 HIGH SiYuan before v3.7.4 Information Disclosure via renderAttributeView
CVE-2026-72794 8.6 HIGH siyuan before v3.7.4 Session Cookie Key Disclosure via getConf
CVE-2026-72795 8.6 HIGH SiYuan before v3.7.4 Information Disclosure via Embed Block
CVE-2026-72809 8.0 HIGH SiYuan before v3.7.4 Authentication Bypass via Localhost Trust
CVE-2026-72807 8.0 HIGH SiYuan before v3.7.4 SQL Injection via queryBlocks template
CVE-2026-72801 7.5 HIGH SiYuan before v3.7.4 Information Disclosure via Encryption Key Material
CVE-2026-72796 5.8 MEDIUM SiYuan before v3.7.4 Access Control Bypass via Static Routes
CVE-2026-72791 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via getAttributeViewFieldViews
CVE-2026-72788 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via UILayout Filter
CVE-2026-72805 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via Block Endpoints
CVE-2026-72803 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via getBlockAttrs
CVE-2026-72790 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via getNotebookInfo
CVE-2026-72808 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via getFileAnnotation
CVE-2026-72797 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via getEncryptedNotebookStatus
CVE-2026-72792 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via Tag API
CVE-2026-72799 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via Path Resolution
CVE-2026-72800 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via Unfiltered API

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: siyuan
Same vendor: siyuan-note
Same weakness: CWE-862

V. Comments for CVE-2026-72806

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