CVE-2026-68587

SiYuan versions before v3.7.3 contain an information disclosure vulnerability in the getHeadingDeleteTransaction, getHeadingLevelTransaction, and getHeadingInsertTransaction endpoints that return rendered block DOM without publish-access checks. Anonymous readers or publish RoleReader tokens can supply a heading block ID to read full rendered content of publish-disabled documents that should be restricted.

CVSS v3 8.6 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-69mh-gvh4-8gp7
https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getheading-transaction
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-69mh-gvh4-8gp7

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-03 14:16

Updated : 2026-08-26 17:06

NVD link : CVE-2026-68587

Mitre link : CVE-2026-68587

CVE.ORG link : CVE-2026-68587

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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