argneshu appium-mcp-server up to 0.1.61 File Path Validation write_file/write_files_batch path traversal

Summaryinfo

A vulnerability, which was classified as problematic, has been found in argneshu appium-mcp-server up to 0.1.61. Affected by this vulnerability is the function write_file/write_files_batch of the component File Path Validation. The manipulation leads to path traversal. This vulnerability is uniquely identified as CVE-2026-84201. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in argneshu appium-mcp-server up to 0.1.61. It has been rated as problematic. This issue affects the function write_file/write_files_batch of the component File Path Validation. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at npmjs.com. The identification of this vulnerability is CVE-2026-84201 since 09/01/2026. The exploitation is known to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Artificial Intelligence Software

Vendor

• argneshu

Name

• appium-mcp-server

Version

• 0.1.0
• 0.1.1
• 0.1.2
• 0.1.3
• 0.1.4
• 0.1.5
• 0.1.6
• 0.1.7
• 0.1.8
• 0.1.9
• 0.1.10
• 0.1.11
• 0.1.12
• 0.1.13
• 0.1.14
• 0.1.15
• 0.1.16
• 0.1.17
• 0.1.18
• 0.1.19
• 0.1.20
• 0.1.21
• 0.1.22
• 0.1.23
• 0.1.24
• 0.1.25
• 0.1.26
• 0.1.27
• 0.1.28
• 0.1.29
• 0.1.30
• 0.1.31
• 0.1.32
• 0.1.33
• 0.1.34
• 0.1.35
• 0.1.36
• 0.1.37
• 0.1.38
• 0.1.39
• 0.1.40
• 0.1.41
• 0.1.42
• 0.1.43
• 0.1.44
• 0.1.45
• 0.1.46
• 0.1.47
• 0.1.48
• 0.1.49
• 0.1.50
• 0.1.51
• 0.1.52
• 0.1.53
• 0.1.54
• 0.1.55
• 0.1.56
• 0.1.57
• 0.1.58
• 0.1.59
• 0.1.60
• 0.1.61

CPE 2.3info

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CPE 2.2info

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