Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-73606— SiYuan before v3.7.4 Information Disclosure via getRefIDs

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/block/getRefIDs端点未检查受密码保护的文档层级，可能导致未经身份验证的读者发现受密码保护文档引用的特定块并获取块标识符。

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
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-73606

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
SiYuan before v3.7.4 Information Disclosure via getRefIDs
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the /api/block/getRefIDs endpoint that fails to check password-protected document tiers. Unauthenticated readers can discover that password-protected documents reference specific blocks and obtain block identifiers without entering the document 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
通过用户控制密钥绕过授权机制
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/block/getRefIDs端点未检查受密码保护的文档层级，可能导致未经身份验证的读者发现受密码保护文档引用的特定块并获取块标识符。
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-2026-73606

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-73606

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-73606 (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-2026-73610 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via Local Storage
CVE-2026-73607 5.8 MEDIUM SiYuan before v3.7.4 Information Disclosure via getOutlineStorage
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-639

V. Comments for CVE-2026-73606

No comments yet

Leave a comment