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High severity7.5NVD Advisory· Published Oct 25, 2026· Updated Oct 25, 2026

CVE-2026-116171

CVE-2026-116171

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. 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 products

2
  • Siyuan Note/Siyuanllm-fuzzy2 versions
    <3.8.7+ 1 more
    • (no CPE)range: <3.8.7
    • (no CPE)range: <3.8.7

Patches

Vulnerability mechanics

References

2

News mentions

0

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