CVE-2026-84201

appium-mcp-server through 0.1.61 Path Traversal in write_file and write_files_batch

Published Sep 1, 2026 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Argneshu
Argneshu appium-mcp-server
Vendors & Products Argneshu
Argneshu appium-mcp-server
Type Values Removed Values Added
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.
Title appium-mcp-server through 0.1.61 Path Traversal in write_file and write_files_batch
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 4, 2026, 2:01 AM
Reserved
Sep 1, 2026, 11:03 AM
Status
Deferred
Published
Sep 1, 2026, 4:17 PM
Modified
Sep 8, 2026, 8:18 PM