CVE-2026-42448: Magic-Wormhole

Low severity, CVSS 3.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Magic Wormhole makes it possible to get arbitrary-sized files and directories from one computer to another. Prior to 0.24.0, there is a path traversal when a receiver who specifies "--output <dir>" where that output directory currently exists (as a directory). This vulnerability is fixed in 0.24.0.

Affected products

• Magic-Wormhole Magic-Wormhole: before 0.24.0 (fixed in 0.24.0)

Published 2026-05-26. Last modified 2026-07-24.