{"id":"CVE-2026-54069","revision":"e067404a12ad41fa9da040f3877787d4","records":[{"revision":"e067404a12ad41fa9da040f3877787d4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-54069","aliases":[],"title":"SiYuan: Unauthenticated Admin API Access via Blanket chrome-extension:// Origin Allowlist","description":"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.","state":0,"publishedAt":"2026-06-24T21:17:02.466+00:00","modifiedAt":"2026-06-25T13:55:20.853+00:00","affected":[{"ecosystem":"Vendor product","name":"siyuan","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"siyuan-note\",\n                    \"product\": \"siyuan\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.7.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.2,"severity":"CRITICAL"}],"references":["https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54069","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-54069","identifiers":["CVE-2026-54069"]},"retained":false,"historicalAffected":[]}],"coverage":[]}