Subsonic API: any authenticated user can delete or read any other user’s playlist (IDOR)_CVE-2026-49338

{
    "lastseen": "",
    "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.",
    "published": "2026-06-19T19:08:34.220Z",
    "modified": "2026-06-19T19:08:34.220Z",
    "type": "cve",
    "title": "Subsonic API: any authenticated user can delete or read any other user's playlist (IDOR)",
    "source": "GitHub_M",
    "references": "https://github.com/sentriz/gonic/security/advisories/GHSA-hmgp-w9jm-vp95\nhttps://github.com/sentriz/gonic/commit/6dd71e6",
    "id": "CVE-2026-49338",
    "bulletinFamily": "",
    "cwe": [
        "CWE-285",
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "sentriz gonic < 0.21.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "gonic",
    "version": "< 0.21.0",
    "vendor": "sentriz",
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    "ai_score": 0
}