CVE-2026-72788

Deferred Deferred - Pending Action

SiYuan UILayout Information Disclosure via getConf Endpoint

Publication date: 2026-08-12

Last updated on: 2026-08-26

Assigner: VulnCheck

Description

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the UILayout filter that fails to properly restrict administrator workspace state from publish readers. Unauthenticated attackers can retrieve the administrator's open documents, search terms, notebook paths, and private asset locations by calling the getConf endpoint without authentication.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-12

Last Modified

2026-08-26

Generated

2026-09-02

AI Q&A

2026-08-13

EPSS Evaluated

2026-08-31

NVD

CVE-2026-72788

EUVD

EUVD-2026-57448

Affected Vendors & Products

Vendor	Product	Version / Range
siyuan	siyuan	to 3.7.4 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability affects SiYuan versions before v3.7.4. It is an information disclosure issue in the UILayout filter that fails to properly restrict administrator workspace state from publish readers. Unauthenticated attackers can retrieve sensitive data like open documents, search terms, notebook paths, and private asset locations by calling the getConf endpoint without authentication.

Detection Guidance

To detect this vulnerability, check if unauthenticated requests to the /api/system/getConf endpoint return sensitive information like open documents, search terms, or private asset paths. Use tools like curl to send a GET request to this endpoint and inspect the response for exposed data.

Impact Analysis

If you use SiYuan versions before v3.7.4, an attacker could access your private workspace data, including open documents, recent search terms, notebook paths, and private asset locations. This could lead to unauthorized exposure of sensitive information stored in your notes.

Compliance Impact

This vulnerability could lead to non-compliance with data protection regulations like GDPR or HIPAA by exposing sensitive personal or health-related information. Unauthorized access to private documents or search terms may violate confidentiality requirements and data protection laws.

Mitigation Strategies

Immediately upgrade SiYuan to version 3.7.4 or later to patch the vulnerability. If upgrading is not possible, restrict access to the /api/system/getConf endpoint by implementing authentication or network-level controls to prevent unauthenticated access.

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