{"schema":"threatline.record/2","record":{"id":"CVE-2026-109309","aliases":["GHSA-phmw-4rgv-r4xv"],"summary":"SiYuan v3.7.0 before v3.8.6 Arbitrary File Read via Plugin ResponseFile.Path","details":"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.","categories":["Unclassified"],"product":"siyuan","vendor":"siyuan-note","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109309","source_modified_at":"2026-10-13T16:54:55.029Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"siyuan","vendor":"siyuan-note","versions":[{"version":"3.7.0","status":"affected","versionType":"semver","lessThan":"3.8.6"},{"version":"3.8.6","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109309","source_modified_at":"2026-10-13T16:54:55.029Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"siyuan","ecosystem":null},"version":"3.8.6","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00381,"percentile":0.30955,"score_date":"2026-10-23"},"published_at":"2026-10-12T16:05:05.359Z","modified_at":"2026-10-13T16:54:55.029Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109309","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T16:54:55.029Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109309","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-phmw-4rgv-r4xv","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/siyuan-note/siyuan/commit/c6494375ea40ee973f430f0e85d50f1862a30d81","tags":["patch"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/siyuan-3.7.0-before-3.8.6-arbitrary-file-read-via-plugin-responsefile-path","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-13T16:22:11.778095Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-13T16:54:55.029Z","content_hash":"4c65dd1265df04de7d352d26aa95829d5cc4bbe694b5fb1b5f42784cea92e19d"}}