CVE-2026-59855

Description

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.

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Weakness Type (CWE)

CWE-80 CWE-80

References

Other References

https://github.com/siyuan-note/siyuan/commit/efbe3a557720034782643e55c9e0282530cb6bbb https://github.com/siyuan-note/siyuan/releases/tag/v3.7.1 https://github.com/siyuan-note/siyuan/security/advisories/GHSA-w3gq-5j72-36vc

Frequently Asked Questions

What is CVE-2026-59855? +

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.

How do I check if I'm vulnerable to CVE-2026-59855? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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