Path Traversal in Mobile-Next Mobile-Mcp
CVE-2026-33989
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.005 (40.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.
Affected products
- Mobile-next Mobile-mcp — versions < 0.0.49
- Mobilenexthq Mobile_mcp
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-33989?
- CVE-2026-33989 is a high-severity vulnerability in Mobile-Next Mobile-Mcp, classified under Path Traversal. CVSS score: 8.1/10. Published 2026-03-27.
- How severe is CVE-2026-33989?
- High severity. CVSS v3 base score is 8.1 out of 10.