{"id":"CVE-2026-109309","revision":"bca1a82dc0e148da9f4a090e19f1e7dc","records":[{"revision":"bca1a82dc0e148da9f4a090e19f1e7dc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109309","aliases":[],"title":"SiYuan v3.7.0 before v3.8.6 Arbitrary File Read via Plugin ResponseFile.Path","description":"SiYuan v3.7.0 before v3.8.6 contains an absolute path traversal vulnerability in the kernel's private plugin HTTP server, which passes a kernel plugin handler's ResponseFile.Path to gin's Context.File without validation. Attackers supplying a malicious kernel plugin can return an absolute path to read any file readable by the SiYuan process, including the API token and conf.json.","state":0,"publishedAt":"2026-10-12T16:05:05.359+00:00","modifiedAt":"2026-10-13T16:54:55.029+00:00","affected":[{"ecosystem":"Vendor product","name":"siyuan","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"siyuan-note\",\n                    \"product\": \"siyuan\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"3.7.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"3.8.6\"\n                        },\n                        {\n                            \"version\": \"3.8.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/siyuan-note/siyuan/security/advisories/GHSA-phmw-4rgv-r4xv","https://github.com/siyuan-note/siyuan/commit/c6494375ea40ee973f430f0e85d50f1862a30d81","https://www.vulncheck.com/advisories/siyuan-3.7.0-before-3.8.6-arbitrary-file-read-via-plugin-responsefile-path"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109309","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109309","identifiers":["CVE-2026-109309"]},"retained":false,"historicalAffected":[]}],"coverage":[]}