{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "3.13.1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "f49b4157121acdc0150dd093d79179ecbdc2219c"
            }
          ],
          "repo": "https://github.com/arthi-chaud/meelo",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/122xxx/CVE-2026-122327.json"
  },
  "details": "Meelo through 3.13.1 contains a missing authorization vulnerability that allows authenticated non-admin users to modify shared catalog data because RolesGuard does not require Admin on song, track and video write routes. Attackers can send PUT requests to /songs/:idOrSlug, /tracks/:idOrSlug or /videos/:idOrSlug, or POST to /songs/:idOrSlug/merge, to alter genres, reassign tracks and merge songs.",
  "id": "CVE-2026-122327",
  "modified": "2026-11-05T21:15:59.747998831Z",
  "published": "2026-11-05T15:11:45.477Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://github.com/Arthi-chaud/Meelo"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Arthi-chaud/Meelo/blob/v3.13.1/server/src/authentication/roles/roles.guard.ts#L48-L117"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Arthi-chaud/Meelo/blob/v3.13.1/server/src/song/song.controller.ts#L275-L309"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Arthi-chaud/Meelo/blob/v3.13.1/server/src/track/track.controller.ts#L145-L160"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/Arthi-chaud/Meelo/blob/v3.13.1/server/src/video/video.controller.ts#L131-L149"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Arthi-chaud/Meelo/issues/2185"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/122xxx/CVE-2026-122327.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://hackmd.io/@hieund/meelo-catalog-metadata-write-missing-admin-authz"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-122327"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/meelo-through-3.13.1-missing-authorization-on-song-track-and-video-endpoints"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Meelo through 3.13.1 Missing Authorization on Song, Track and Video Endpoints"
}