Dashboard / CVE-2026-116171

CVE-2026-116171

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 57/100
Published: 2026-10-25 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
AT: Present
VC: High
VI: None
VA: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
siyuan-note siyuan 3.5.4 < 3.8.7

References & Advisories (2)

Bug Bounty Relevance

57 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

5.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.48%
Raw Score 0.004790
Percentile 41.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00479
2026-10-28
0.00560

Intelligence Sources

mitre ref →
nvd ref →

External Links