{"id":"CVE-2026-109309","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.","aliases":["GHSA-phmw-4rgv-r4xv"],"modified":"2026-10-13T02:46:40.394658662Z","published":"2026-10-12T16:05:05.359Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109309.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-22"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109309.json"},{"type":"FIX","url":"https://github.com/siyuan-note/siyuan/commit/c6494375ea40ee973f430f0e85d50f1862a30d81"},{"type":"ADVISORY","url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-phmw-4rgv-r4xv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109309"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/siyuan-3.7.0-before-3.8.6-arbitrary-file-read-via-plugin-responsefile-path"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/siyuan-note/siyuan","events":[{"introduced":"27e0051e0d067892e833df1063cb2fb469600e98"},{"fixed":"158812497497c6fa8a6d1031bfa2f025a61ee5c2"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"3.7.0"},{"fixed":"3.8.6"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109309.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}