Path traversal in @mobilenext/mobile-mcp MCP server (CVE-2026-33989)
The @mobilenext/mobile-mcp server passed the `saveTo` and `output` parameters of its `mobile_save_screenshot` and `mobile_start_screen_recording` tools directly to filesystem operations without validation, allowing an attacker to write files outside the intended workspace. The issue was fixed in version 0.0.49.
Disclosed 27 March 2026 · Record updated 13 September 2026
Impact
Attackers could write files outside the intended workspace via unvalidated screenshot and screen-recording output paths in versions prior to 0.0.49.
Our coverage
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Sources
- nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-33989
