CVE-2026-32749Public exploitNetwork attack vector

Arbitrary file write via multipart filename traversal

Published Mar 19, 2026 · Updated Mar 19, 2026

Path traversal in SiYuan 3.6.0 and earlier allows remote authenticated users to write files outside the import directory. The importSY and importZipMd handlers join an unsanitized multipart filename to the temporary import path and open the resolved path for writing. An administrator API token is required; writable workspace or application files can be overwritten, and a root-run container permits code execution.

CVSS severity7.6
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in SiYuan 3.6.0 and earlier allows remote authenticated users to write files outside the import directory. The importSY and importZipMd handlers join an unsanitized multipart filename to the temporary import path and open the resolved path for writing. An administrator API token is required; writable workspace or application files can be overwritten, and a root-run container permits code execution.

The record

CVE
CVE-2026-32749
Published
Mar 19, 2026
Updated
Mar 19, 2026
Vendor
SiYuan Note
Product
SiYuan
Classifications
CWE-73, CWE-22, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.6.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

SiYuan Note · SiYuanversion=< 3.6.1

Published CVSS scores

7.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:N
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-73External Control of File Name or Path
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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