CVE-2026-54069

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan Note's kernel HTTP server unconditionally trusts all chrome-extension:// origins, granting RoleAdministrator access to every installed browser extension without any authentication. Combined with the default empty AccessAuthCode on desktop installs, any Chrome/Chromium extension -- including a compromised legitimate extension via supply chain attack -- can make fully authenticated admin API calls to the SiYuan kernel at 127.0.0.1:6806, enabling data exfiltration, stored XSS injection, and configuration tampering. This vulnerability is fixed in 3.7.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3

Configurations

No configuration.

History

25 Jun 2026, 15:16

Type	Values Removed	Values Added
References	~~() https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3 -~~	() https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3 -

24 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 22:16

Updated : 2026-06-25 15:16

NVD link : CVE-2026-54069

Mitre link : CVE-2026-54069

CVE.ORG link : CVE-2026-54069

JSON object : View

Products Affected

No product.

CWE

CWE-346

Origin Validation Error

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