siyuan-note SiYuan up to 3.7.0 Asset app/src/asset/index.ts Asset.render path os command injection

Summaryinfo

A vulnerability was found in siyuan-note SiYuan up to 3.7.0. It has been rated as critical. This affects the function Asset.render of the file app/src/asset/index.ts of the component Asset. The manipulation of the argument path leads to os command injection. This vulnerability is listed as CVE-2026-59855. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in siyuan-note SiYuan up to 3.7.0. This issue affects the function Asset.render of the file app/src/asset/index.ts of the component Asset. The manipulation of the argument path with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, Asset.render in app/src/asset/index.ts interpolates the unsanitized this.path value into HTML assigned to innerHTML, allowing a crafted asset link containing a double quote to break out of the src attribute, inject an event handler, and execute JavaScript that can run OS commands in the Electron renderer. This issue is fixed in versions 3.7.1-alpha.2 and 3.7.1.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-59855 since 07/07/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 3.7.1 eliminates this vulnerability.

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Productinfo

Vendor

• siyuan-note

Name

• SiYuan

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7.0

Website

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

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