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CVE-2026-19331— bazylhorsey obsidian-mcp-server CanvasService.ts writeCanvas path traversal

Quick assessment

Affected
bazylhorsey obsidian-mcp-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Bazyl Horsey Obsidian MCP Server是Bazyl Horsey个人开发者开源的一款为AI助手提供笔记访问能力的MCP服务器。 Bazyl Horsey Obsidian MCP Server 1.0.0版本存在路径遍历漏洞，该漏洞源于文件src/services/CanvasService.ts中readCanvas/writeCanvas函数存在路径遍历问题，可能导致路径遍历攻击。

CVSS 5.3 · Medium EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

Affected Version Matrix 1

VendorProduct Version RangeStatus
bazylhorsey obsidian-mcp-server 1.0.0 affected
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I. Basic Information for CVE-2026-19331

Vulnerability Information
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Vulnerability Title
bazylhorsey obsidian-mcp-server CanvasService.ts writeCanvas path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in bazylhorsey obsidian-mcp-server 1.0.0. This affects the function readCanvas/writeCanvas of the file src/services/CanvasService.ts. Such manipulation leads to path traversal. An attack has to be approached locally. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Bazyl Horsey Obsidian MCP Server 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bazyl Horsey Obsidian MCP Server是Bazyl Horsey个人开发者开源的一款为AI助手提供笔记访问能力的MCP服务器。 Bazyl Horsey Obsidian MCP Server 1.0.0版本存在路径遍历漏洞，该漏洞源于文件src/services/CanvasService.ts中readCanvas/writeCanvas函数存在路径遍历问题，可能导致路径遍历攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
bazylhorsey obsidian-mcp-server 1.0.0 cpe:2.3:a:bazylhorsey:obsidian-mcp-server:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19331

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-19331

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Vendor Advisories for CVE-2026-19331 (1)

Vendor Pages for CVE-2026-19331 (1)

Other References for CVE-2026-19331 (2)

IV. Related Vulnerabilities

Same weakness: CWE-22