CVE-2026-72805
Medium
Description
SiYuan versions before v3.7.4 fail to enforce publish-access checks on getBlockBreadcrumb, getRefText, and getBlockTreeInfos endpoints, allowing disclosure of protected document content and metadata. Anonymous readers or publish RoleReader accounts can retrieve document titles, ancestor block content snippets, reference text, and path metadata for publish-forbidden or password-protected documents by supplying block IDs.
SeverityMedium
CVSS5.8
Exploit probability—
ProductGithub.com/siyuan-note/siyuan/kernel
PublishedAug 12, 2026
First seenAug 12, 2026
Weakness typeCWE-862Missing authorization
How to fix
Update
- github.com/siyuan-note/siyuan/kernel0.0.0-20260723163028-931ba693375e or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/siyuan-note/siyuan/kernelGo | v < 0.0.0-20260723163028-931ba693375e | 0.0.0-20260723163028-931ba693375e |
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