CVE-2026-82233

SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into the asset directory through prompt injection.

CVSS v3 5.7 MEDIUM

5.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p23f-cm6q-2qp8
https://www.vulncheck.com/advisories/siyuan-before-3.8.1-path-traversal-via-asset-upload
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p23f-cm6q-2qp8

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 12:16

Updated : 2026-08-31 19:17

NVD link : CVE-2026-82233

Mitre link : CVE-2026-82233

CVE.ORG link : CVE-2026-82233

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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