CVE-2026-23877: Swingmx Swing Music

Medium severity, CVSS 4.3. EPSS: 0.6% chance of exploitation in the next 30 days.

Swing Music is a self-hosted music player for local audio files. Prior to version 2.1.4, Swing Music's `list_folders()` function in the `/folder/dir-browser` endpoint is vulnerable to directory traversal attacks. Any authenticated user (including non-admin) can browse arbitrary directories on the server filesystem. Version 2.1.4 fixes the issue.

Affected products

• Swingmx Swing Music: before 2.1.4 (fixed in 2.1.4)

Published 2026-01-19. Last modified 2026-06-17.