{"id":"CVE-2026-116171","state":"PUBLISHED","title":"SiYuan 3.5.4 before 3.8.7 Sensitive Path Bypass via Windows Extended-Length Prefix","description":"SiYuan 3.5.4 before 3.8.7 on Windows contains a sensitive-path denylist bypass in IsSensitivePath because the Windows extended-length prefix (\\\\?\\) survives filepath.Clean and matches no forbidden prefix. 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