CVE-2026-33989 HIGH

CVE-2026-33989: @mobilenext/mobile-mcp alllows arbitrary file write via Path Traversal in mobile screen capture tools

Vendor Mobile-Next
Product mobile-mcp
Weakness CWE-22 · Path traversal
Published March 27, 2026
Last update March 30, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

What the vulnerability does

01Description

Mobile Next is an MCP server for mobile development and automation. Prior to version 0.0.49, the `@mobilenext/mobile-mcp` server contains a Path Traversal vulnerability in the `mobile_save_screenshot` and `mobile_start_screen_recording` tools. The `saveTo` and `output` parameters were passed directly to filesystem operations without validation, allowing an attacker to write files outside the intended workspace. Version 0.0.49 fixes the issue.

Key dates

02Disclosure timeline

March 27, 2026 CVE published
March 30, 2026 Record updated