{"id":"CVE-2026-54069","revision":"ebbc19663ea24e62bd4929c5c7144e76","records":[{"revision":"ebbc19663ea24e62bd4929c5c7144e76","observedAt":"2026-10-27T14:13:29.239+00:00","statement":{"source":"nvd","id":"CVE-2026-54069","aliases":[],"title":"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 w…","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":"2026-06-24T22:16:48.433+00:00","modifiedAt":"2026-10-25T23:10:00.167+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":9.2,"severity":"CRITICAL"}],"references":["https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54069","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-346"],"productCriteria":[],"sourceDates":{"published":"2026-06-24T22:16:48.433","lastModified":"2026-10-25T23:10:00.167"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-54069","identifiers":["CVE-2026-54069"]},"retained":false,"historicalAffected":[]}],"coverage":[]}