{"affected":[{"defaultStatus":"unaffected","ecosystem":"golang","packageName":"github.com/siyuan-note/siyuan/kernel","product":"siyuan","source":"CNA: VulnCheck","vendor":"siyuan-note","versions":[{"lessThan":"3.8.7","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"3.8.7","versionType":"semver"}]}],"cveId":"CVE-2026-116168","cwes":["CWE-22"],"description":"SiYuan before 3.8.7 contains a path traversal vulnerability in the MCP asset tool because validateAssetUploadPaths relies on an incomplete sensitive-path blacklist that omits .env and other secret files. Authenticated attackers driving the MCP asset upload action can copy such local files into the workspace and read them back via /assets/ over HTTP.","epss":{"date":"2026-11-04","percentile":0.08276,"score":0.00186},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q768-4j87-gf3w"}],"kev":null,"metrics":[{"score":6.9,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":6.2,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},{"score":6.9,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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","version":"4.0"},{"score":6.2,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}],"modifiedAt":1793809062740,"publishedAt":1792934411054,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q768-4j87-gf3w"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/siyuan-before-3.8.7-path-traversal-local-file-read-via-mcp-asset-tool"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q768-4j87-gf3w"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q768-4j87-gf3w"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/siyuan-before-3.8.7-path-traversal-local-file-read-via-mcp-asset-tool"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q768-4j87-gf3w"}],"remediation":[],"revision":"74a59e86e15ae8b7e760068732ba978bb60e57dbd0f2fcdf6cabb92a1db6ef8e","sources":[{"modifiedAt":1793808416082,"name":"CNA: VulnCheck","retrievedAt":1793812147364,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116168"},{"modifiedAt":1793809062740,"name":"NVD","retrievedAt":1793816320258,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116168"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793812160381,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-116168"}],"ssvc":{"assessedAt":1793808400114,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"SiYuan before v3.8.7 Path Traversal Local File Read via MCP Asset Tool","updatedAt":1793816320258}