{"id":"CVE-2026-49338","summary":"Subsonic API: any authenticated user can delete or read any other user's playlist (IDOR)","details":"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(\"\u003cuserID\u003e/\u003cfilename\u003e.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.","aliases":["GHSA-hmgp-w9jm-vp95","GO-2026-5830"],"modified":"2026-08-12T03:51:25.723424967Z","published":"2026-06-19T19:08:34.220Z","related":["openSUSE-SU-2026:21483-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49338.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-285","CWE-639"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49338.json"},{"type":"ADVISORY","url":"https://github.com/sentriz/gonic/security/advisories/GHSA-hmgp-w9jm-vp95"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49338"},{"type":"FIX","url":"https://github.com/sentriz/gonic/commit/6dd71e6"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sentriz/gonic","events":[{"introduced":"0"},{"fixed":"6dd71e6"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.21.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49338.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N"}]}