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CVE-2026-82652— SiYuan before v3.8.1 Information Disclosure via Publish Access

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.

思源笔记 v3.8.1 之前的版本在发布模式下，未能有效过滤“隐藏层级”的内容于 SQL 嵌入块、属性视图键值及属性视图反链中。即使管理员已将相关内容的“发布状态”设置为“未公开”，匿名读者仍可通过这三种列表机制枚举并获取这些隐藏内容。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-82652

Vulnerability Information
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Vulnerability Title
SiYuan before v3.8.1 Information Disclosure via Publish Access
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan before v3.8.1 fails to filter invisible-tier content from SQL embed blocks, attribute-view keys, and attribute-view backlinks in publish mode. Anonymous readers can enumerate invisible content through these three listing mechanisms despite admin configuration marking content unlisted.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
将资源暴露给错误范围
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
siyuan-note siyuan 0 ~ 3.8.1 -

II. Public POCs for CVE-2026-82652

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III. Intelligence Information for CVE-2026-82652

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Vendor Advisories for CVE-2026-82652 (2)

Same Patch Batch · siyuan-note · 2026-08-30 · 6 CVEs total

CVE-2026-82654 8.9 HIGH SiYuan before v3.8.1 Stored XSS via block name
CVE-2026-82653 8.9 HIGH SiYuan before v3.8.1 Stored XSS via confirmDialog
CVE-2026-82649 7.0 HIGH SiYuan before 3.8.1 Local Privilege Escalation via Uncontrolled Search Path
CVE-2026-82651 4.9 MEDIUM SiYuan before v3.8.1 Missing Authorization via /history and /repo/diff
CVE-2026-82650 4.4 MEDIUM SiYuan before v3.8.1 Path Traversal via /api/template/render

IV. Related Vulnerabilities

Same product: siyuan
Same vendor: siyuan-note
Same weakness: CWE-668

V. Comments for CVE-2026-82652

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