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CVE-2026-73607— SiYuan before v3.7.4 Information Disclosure via getOutlineStorage

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/api/storage/getOutlineStorage端点未执行授权检查，可能导致信息泄露，攻击者可通过提供标识符检索任何文档的标题标识符。

CVSS 5.8 · Medium EPSS 0.33% · P23

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

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-2026-73607

Vulnerability Information
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Vulnerability Title
SiYuan before v3.7.4 Information Disclosure via getOutlineStorage
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the /api/storage/getOutlineStorage endpoint that performs no authorization checks. Attackers can retrieve outline state including heading identifiers for any document by supplying its identifier, even for documents forbidden to the requester.
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/api/storage/getOutlineStorage端点未执行授权检查，可能导致信息泄露，攻击者可通过提供标识符检索任何文档的标题标识符。
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-2026-73607

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III. Intelligence Information for CVE-2026-73607

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Vendor Advisories for CVE-2026-73607 (2)

Same Patch Batch · siyuan-note · 2026-08-13 · 6 CVEs total

CVE-2026-73608 8.6 HIGH SiYuan before v3.7.4 Authorization Bypass via getAttributeViewSearchTarget
CVE-2026-73606 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via getRefIDs
CVE-2026-73610 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via Local Storage
CVE-2026-73609 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via getBookmarkLabels
CVE-2026-73605 5.8 MEDIUM SiYuan before v3.7.4 Path Traversal via getUniqueFilename

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-73607

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