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CVE-2026-84201— appium-mcp-server through 0.1.61 Path Traversal in write_file and write_files_batch

Quick assessment

Affected
argneshu appium-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.

argneshu Appium MCP Server是argneshu个人开发者的一个应用服务中间件。 argneshu Appium MCP Server 0.1.61及之前版本存在路径遍历漏洞，该漏洞源于write_file和write_files_batch工具未能验证或规范化文件路径，可能允许攻击者通过提供绝对路径或包含父目录段的相对路径，以服务器用户权限覆盖任意文件。

CVSS 7.1 · High EPSS 0.19% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
argneshu appium-mcp-server ≤ 0.1.61 affected
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I. Basic Information for CVE-2026-84201

Vulnerability Information
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Vulnerability Title
appium-mcp-server through 0.1.61 Path Traversal in write_file and write_files_batch
Source: CVE Program / CVE List V5
Vulnerability Description
appium-mcp-server through 0.1.61 fails to validate or normalize file paths in the write_file and write_files_batch tools, allowing attackers to write files outside the intended PROJECT_ROOT directory. Attackers can supply absolute paths or relative paths with parent directory segments to overwrite arbitrary files with the server user's privileges, including shell profiles and configuration files in the home directory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
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
argneshu Appium MCP Server 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
argneshu Appium MCP Server是argneshu个人开发者的一个应用服务中间件。 argneshu Appium MCP Server 0.1.61及之前版本存在路径遍历漏洞，该漏洞源于write_file和write_files_batch工具未能验证或规范化文件路径，可能允许攻击者通过提供绝对路径或包含父目录段的相对路径，以服务器用户权限覆盖任意文件。
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
argneshu appium-mcp-server 0 ~ 0.1.61 -

II. Public POCs for CVE-2026-84201

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III. Intelligence Information for CVE-2026-84201

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Vendor Advisories for CVE-2026-84201 (1)

Proof of Concept for CVE-2026-84201 (1)

Other References for CVE-2026-84201 (1)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2026-84201

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