CVE-2026-116168

SiYuan before 3.8.7 contains a path traversal vulnerability in the MCP asset tool because validateAssetUploadPaths relies on an incomplete sensitive-path blacklist that omits .env and other secret files. Authenticated attackers driving the MCP asset upload action can copy such local files into the workspace and read them back via /assets/ over HTTP.

CVSS v3 6.2 MEDIUM

6.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-q768-4j87-gf3w
https://www.vulncheck.com/advisories/siyuan-before-3.8.7-path-traversal-local-file-read-via-mcp-asset-tool

Configurations

No configuration.

History

25 Oct 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-25 14:16

Updated : 2026-10-25 15:17

NVD link : CVE-2026-116168

Mitre link : CVE-2026-116168

CVE.ORG link : CVE-2026-116168

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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