CVE-2026-72803
Medium
Description
SiYuan versions before v3.7.4 fail to enforce publish-access checks in the getBlockAttrs and batchGetBlockAttrs endpoints. Attackers can retrieve block attributes including names, aliases, memos, and custom fields from protected documents by sending POST requests with 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/kernel0.0.0-20260724093256-229fdffd7e4a or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/siyuan-note/siyuan/kernelGo | v < 0.0.0-20260724093256-229fdffd7e4a | 0.0.0-20260724093256-229fdffd7e4a |
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