siyuan-note siyuan up to 3.7.2 Attribute-View avID path traversal

Summaryinfo

A vulnerability was found in siyuan-note siyuan up to 3.7.2. It has been classified as problematic. The impacted element is an unknown function of the component Attribute-View. This manipulation of the argument avID causes path traversal. The identification of this vulnerability is CVE-2026-69086. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in siyuan-note siyuan up to 3.7.2. Affected by this vulnerability is an unknown code block of the component Attribute-View. The manipulation of the argument avID with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. The summary by CVE is:

SiYuan versions before v3.7.3 fail to validate the avID parameter on all code branches in attribute-view read endpoints, allowing attackers to construct traversal paths that escape the storage directory. Authenticated users with RoleReader permissions or anonymous clients when publish authentication is disabled can read JSON files outside the attribute-view directory to disclose cross-scope database content.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-69086 since 08/03/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 3.7.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-52279). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• siyuan-note

Name

• siyuan

Version

• 3.7.0
• 3.7.1
• 3.7.2

Website

• Product: https://github.com/siyuan-note/siyuan/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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