{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "26.04"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "c002da3bb81f4e87d338d11bf7f6d9bc92409234"
            }
          ],
          "repo": "https://github.com/processone/ejabberd",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "NCSC.ch",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104733.json"
  },
  "details": "User Impersonation in ProcessOnes XMMP Server ejabberd \u003c= 26.04 allows an attacker to impersonate arbitrary users via unvalidated authzid parameter in SASL-PLAIN mechanism.",
  "id": "CVE-2026-104733",
  "modified": "2026-10-04T02:30:23.681249590Z",
  "published": "2026-10-02T12:19:10.635Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104733.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/processone/ejabberd/releases#release-26.07"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104733"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.nsideattacklogic.de/advisories/NSIDE-SA-2026-004/"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/processone/ejabberd"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:H/SI:H/SA:H/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "User Impersonation/Authorization Bypass in XMPP Server ejabberd"
}