{"id":"CVE-2026-116168","revision":null,"records":[{"revision":"bf4466357264456dbfd8e67420975977","observedAt":"2026-10-25T16:17:04.61+00:00","statement":{"source":"cve-program","id":"CVE-2026-116168","aliases":[],"title":"SiYuan before v3.8.7 Path Traversal Local File Read via MCP Asset Tool","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.","state":0,"publishedAt":"2026-10-25T13:20:11.054+00:00","modifiedAt":"2026-10-25T14:27:41.242+00:00","affected":[{"ecosystem":"Vendor product","name":"siyuan","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"siyuan-note\",\n                    \"product\": \"siyuan\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:golang/github.com/siyuan-note/siyuan/kernel\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"3.8.7\"\n                        },\n                        {\n                            \"version\": \"3.8.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":6.2,"severity":"MEDIUM"}],"references":["https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q768-4j87-gf3w","https://www.vulncheck.com/advisories/siyuan-before-3.8.7-path-traversal-local-file-read-via-mcp-asset-tool"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116168","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-116168","identifiers":["CVE-2026-116168"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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