{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.111.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c039bca9b57c2e554a67fdf462970b54641d82eb"
            },
            {
              "fixed": "631e075c2f3b38129bb550a901bc31369e221baf"
            }
          ],
          "repo": "https://github.com/supabase/realtime",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-rcr8-2525-4r7p"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62247.json"
  },
  "details": "Supabase Realtime provides Broadcast, Presence, and Postgres Changes via WebSockets. Prior to 2.111.2, Realtime authorization does not correctly honor the per-extension presence.read row-level security policy when a private-channel client is allowed presence.write but explicitly denied presence.read. Under that differential policy, the client can receive presence_diff messages containing other members' presence metadata, including application-defined location, online-status, roster, viewing, or typing information. Deployments with uniform presence visibility have no differential, and postgres_changes row data is unaffected. This issue is fixed in version 2.111.2.",
  "id": "CVE-2026-62247",
  "modified": "2026-09-24T03:30:18.444276206Z",
  "published": "2026-09-21T19:04:58.743Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/supabase/realtime/releases/tag/v2.111.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62247.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/supabase/realtime/security/advisories/GHSA-rcr8-2525-4r7p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62247"
    },
    {
      "type": "FIX",
      "url": "https://github.com/supabase/realtime/commit/c039bca9b57c2e554a67fdf462970b54641d82eb"
    },
    {
      "type": "FIX",
      "url": "https://github.com/supabase/realtime/pull/1969"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Supabase Realtime: Incorrect Authorization"
}