CVE-2026-72796— SiYuan before v3.7.4 Access Control Bypass via Static Routes
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，该漏洞源于服务器mux中的静态文件路由绕过REST API上实施的发布访问控制，可能导致攻击者读取模板、片段和导出工件。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud StorageAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| siyuan-note | siyuan | < 3.7.4 |
affected |
3.7.4 |
unaffected |
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I. Basic Information for CVE-2026-72796
Vulnerability Information
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Vulnerability Title
SiYuan before v3.7.4 Access Control Bypass via Static Routes
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan before v3.7.4 contains an access control bypass vulnerability where static-file routes in the server mux bypass publish-access controls enforced on the REST API. Attackers with publish reader tokens or anonymous access in disabled-auth mode can read templates, snippets, and export artifacts by directly accessing static routes that lack the same restrictions as their REST API counterparts.
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，该漏洞源于服务器mux中的静态文件路由绕过REST API上实施的发布访问控制，可能导致攻击者读取模板、片段和导出工件。
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-2026-72796
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-72796 (2)
Same Patch Batch · siyuan-note · 2026-08-12 · 22 CVEs total
| CVE-2026-72794 | 8.6 HIGH | siyuan before v3.7.4 Session Cookie Key Disclosure via getConf |
| 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-2026-72795 | 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-2026-72808 | 5.8 MEDIUM | SiYuan before v3.7.4 Information Disclosure via getFileAnnotation |
| CVE-2026-72790 | 5.8 MEDIUM | SiYuan before v3.7.4 Information Disclosure via getNotebookInfo |
| CVE-2026-72803 | 5.8 MEDIUM | SiYuan before v3.7.4 Information Disclosure via getBlockAttrs |
| CVE-2026-72805 | 5.8 MEDIUM | SiYuan before v3.7.4 Information Disclosure via Block Endpoints |
| CVE-2026-72797 | 5.8 MEDIUM | SiYuan before v3.7.4 Information Disclosure via getEncryptedNotebookStatus |
| CVE-2026-72788 | 5.8 MEDIUM | SiYuan before v3.7.4 Information Disclosure via UILayout Filter |
| CVE-2026-72791 | 5.8 MEDIUM | SiYuan before v3.7.4 Information Disclosure via getAttributeViewFieldViews |
| 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-2026-72806 | 5.8 MEDIUM | SiYuan before v3.7.4 Authentication Bypass via Attribute View |
| 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 → →
IV. Related Vulnerabilities
Same product: siyuan
-
CVE-2026-105205
SiYuan before 3.8.5 Information Disclosure via /api/block/ge -
CVE-2026-104410
SiYuan before 3.8.5 Information Disclosure via /api/export/p -
CVE-2026-103762
SiYuan before v3.8.5 Missing Authorization in Save-Path Reso -
CVE-2026-103763
SiYuan before v3.8.5 Information Disclosure via /api/noteboo -
CVE-2026-101092
SiYuan before v3.8.4 Information Disclosure via getCurrentAt
Same vendor: siyuan-note
-
CVE-2026-105205
SiYuan before 3.8.5 Information Disclosure via /api/block/ge -
CVE-2026-104410
SiYuan before 3.8.5 Information Disclosure via /api/export/p -
CVE-2026-103762
SiYuan before v3.8.5 Missing Authorization in Save-Path Reso -
CVE-2026-103763
SiYuan before v3.8.5 Information Disclosure via /api/noteboo -
CVE-2026-101092
SiYuan before v3.8.4 Information Disclosure via getCurrentAt
Same weakness: CWE-862
-
CVE-2026-39783
WordPress Polylang plugin <= 3.8.7 - Sensitive Data Exposure -
CVE-2026-103684
WordPress WP Event Solution plugin <= 4.1.25 - Broken Access -
CVE-2026-94669
WordPress Fluent Forms Pro Add On Pack plugin <= 6.2.13 - Br -
CVE-2026-39763
WordPress WP Dummy Content Generator plugin <= 4.0.0 - Broke -
CVE-2026-39721
WordPress Starter Templates plugin <= 4.7.7 - Broken Access
V. Comments for CVE-2026-72796
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