{"id":"CVE-2026-118680","title":"SiYuan 3.8.7 through 3.8.8 Path Traversal via GLOBALROOT Alias","summary":"SiYuan 3.8.7 through 3.8.8 fails to normalize Windows GLOBALROOT device-namespace aliases, bypassing the IsSensitivePath denylist. Attackers can invoke importStdMd with a GLOBALROOT-prefixed path to copy the API token and TLS private key…","severity":"medium","cvss":4.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-22"],"vendor":"siyuan-note","product":"siyuan","affected":["siyuan >= 3.8.7 <= 3.8.8"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T18:59:51.831Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-118680","references":[{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-gg3p-r4g8-vxg2","label":"GitHub Security Advisory (GHSA-gg3p-r4g8-vxg2)"},{"url":"https://www.vulncheck.com/advisories/siyuan-3.8.7-through-3.8.8-path-traversal-via-globalroot-alias","label":"VulnCheck Advisory: SiYuan 3.8.7 through 3.8.8 Path Traversal via GLOBALROOT Alias"}],"tags":["cve.org"],"epss":0.00459,"epssPercentile":0.39739,"ingestedAt":"2026-10-29T15:37:07.545Z","slug":"CVE-2026-118680","body":"## Overview\n\nSiYuan 3.8.7 through 3.8.8 fails to normalize Windows GLOBALROOT device-namespace aliases, bypassing the IsSensitivePath denylist. Attackers can invoke importStdMd with a GLOBALROOT-prefixed path to copy the API token and TLS private key into the publicly served assets directory.\n\n## Affected\n\n- `siyuan >= 3.8.7 <= 3.8.8`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":24.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}