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CVE-2026-32749

B3log Siyuan path traversal

7.6 HIGHPublic exploitEPSS 0.57%
  1. Published19 Mar 2026

Description

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, POST /api/import/importSY and POST /api/import/importZipMd write uploaded archives to a path derived from the multipart filename field without sanitization, allowing an admin to write files to arbitrary locations outside the temp directory - including system paths that enable RCE. This can lead to aata destruction by overwriting workspace or application files, and for Docker containers running as root (common default), this grants full container compromise. This issue has been fixed in version 3.6.1.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityLow
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:N

Affected products

B3log Siyuan< 3.6.1

Remediation

Fixed in
B3log Siyuan≥ 3.6.1

References

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Frequently asked

Is CVE-2026-32749 being actively exploited?

CVE-2026-32749 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.57%.

How severe is CVE-2026-32749?

CVE-2026-32749 has a CVSS 3.1 base score of 7.6, rated high. EPSS estimates a 0.57% probability of exploitation.

Which products are affected by CVE-2026-32749?

Affected products include B3log Siyuan.

How do I fix CVE-2026-32749?

Upgrade affected software to a fixed version, for example B3log Siyuan 3.6.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-32749 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.