{"id":"EUVD-2026-39125","revision":"b392ab2656784e13a9674526705b9a5d","records":[{"revision":"b392ab2656784e13a9674526705b9a5d","observedAt":"2026-11-01T10:05:48.944+00:00","statement":{"source":"euvd","id":"EUVD-2026-39125","aliases":["CVE-2026-54069","GHSA-hvr9-72v2-fff3"],"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":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD 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":null}],"references":["https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvr9-72v2-fff3"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39125","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 24, 2026, 9:17:02 PM","dateUpdated":"Jun 25, 2026, 1:55:20 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-39125","identifiers":["EUVD-2026-39125","CVE-2026-54069","GHSA-hvr9-72v2-fff3"]},"retained":false,"historicalAffected":[]}],"coverage":[]}