CVE-2026-116171
Medium · 4.4CVSS
4.4
EPSS
0.5%
Published
Oct 25, 2026
CISA due date
—
The record
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. Authenticated API callers can prepend the prefix to localPath in /api/import/importStdMd to copy workspace conf files, including the API token and TLS private keys, into assets served to unauthenticated clients.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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