CVE-2026-49339

Summary: CVE-2026-49339 affects gonic’s getPlaylist/deletePlaylist endpoints. A path traversal-like flaw in the ownership check allows any authenticated Subsonic user to read or delete another user’s playlist and probe host paths. The root cause is that playlist.UserID is derived from the first p...

CVE-2026-49339 Path traversal in getPlaylist/deletePlaylist bypasses ownership check: any authenticated user can read or delete any other user's playlist

gonic is a music streaming server / free-software subsonic server API implementation. The maintainer's fix in commit 6dd71e6a3c966867ef8c900d359a7df75789f410 added an ownership check based on playlist.UserID. However, playlist.UserID is derived from the first path segment of the attacker-controll...