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CVE-2026-49338— Subsonic API: any authenticated user can delete or read any other user's playlist (IDOR)

CVSS 7.1 · High EPSS 0.17% · P6

Affected Version Matrix 1

VendorProductVersion RangeStatus
sentrizgonic< 0.21.0affected
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I. Basic Information for CVE-2026-49338

Vulnerability Information
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Vulnerability Title
Subsonic API: any authenticated user can delete or read any other user's playlist (IDOR)
Source: NVD (National Vulnerability Database)
Vulnerability Description
gonic is a music streaming server / free-software subsonic server API implementation. Prior to version 0.21.0, the Subsonic API endpoints `/rest/deletePlaylist.view` and `/rest/getPlaylist.view` perform no per-resource authorization. Once authenticated as any user (admin or not), an attacker can delete any playlist owned by any other user (including admin) by passing its `id` and read the full contents (name, comment, song list) of any other user's **private** (non-public) playlist by passing its `id`. The Subsonic playlist `id` is `base64url("<userID>/<filename>.m3u")`. Because filenames are user-supplied or time-derived and the `userID` is a small integer, IDs are guessable and frequently exposed (e.g. a previously-public playlist that was later made private still has the same ID). This breaks the multi-user trust boundary of gonic: a low-privileged user can wipe an administrator's curated playlists, and a user can exfiltrate any private playlist they obtain an ID for. The issue was fixed in commit `6dd71e6a3c966867ef8c900d359a7df75789f410`, which is part of version 0.21.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
sentrizgonic < 0.21.0 -

II. Public POCs for CVE-2026-49338

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III. Intelligence Information for CVE-2026-49338

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Patches & Fixes for CVE-2026-49338 (1)

Vendor Advisories for CVE-2026-49338 (1)

Same Patch Batch · sentriz · 2026-06-19 · 3 CVEs total

CVE-2026-493408.1 HIGHgonic has arbitrary file write in createPlaylist: any authenticated user can write playlis
CVE-2026-493397.1 HIGHPath traversal in getPlaylist/deletePlaylist bypasses ownership check: any authenticated u

IV. Related Vulnerabilities

Same product: gonic
Same vendor: sentriz
Same weakness: CWE-285

V. Comments for CVE-2026-49338

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