PSIRT Broken Access control on Websocket streams

{
  "id": "2fb159bb766cceb77ae7d5d74c3e014b192b8adcbf82dbff654c7a489404b9fb",
  "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-164",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "PSIRT Broken Access control on Websocket streams",
    "summary": "An authenticated attacker with zero permissions may subscribe to FortiSOAR websocket streams and topics and inject broadcast messages. FortiSOAR 7.6.0–7.6.6 and 7.5.0–7.5.3 are affected; 7.4 and 7.3 are listed as affected across all versions. Upgrade to the stated fixed versions or migrate to a fixed release.",
    "evidence": "An Improper Access control vulnerability [CWE-284] in FortiSOAR may allow an authenticated attacker with zero permissions to subscribe to websocket streams and topics and to inject broadcast messages to the stream via crafted websocket requests",
    "products": [
      {
        "name": {
          "value": "FortiSOAR PaaS",
          "evidence": "FortiSOAR PaaS 7.6"
        },
        "prerequisites": [
          {
            "value": "authenticated attacker with zero permissions",
            "evidence": "an authenticated attacker with zero permissions"
          }
        ],
        "fixed_versions": [
          {
            "value": "7.6.7 or above",
            "evidence": "Upgrade to 7.6.7 or above"
          },
          {
            "value": "7.5.4 or above",
            "evidence": "Upgrade to 7.5.4 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "7.6.0 through 7.6.6",
            "evidence": "7.6.0 through 7.6.6"
          },
          {
            "value": "7.5.0 through 7.5.3",
            "evidence": "7.5.0 through 7.5.3"
          },
          {
            "value": "7.4 all versions",
            "evidence": "7.4 all versions"
          },
          {
            "value": "7.3 all versions",
            "evidence": "7.3 all versions"
          }
        ]
      },
      {
        "name": {
          "value": "FortiSOAR on-premise",
          "evidence": "FortiSOAR on-premise 7.6"
        },
        "prerequisites": [
          {
            "value": "authenticated attacker with zero permissions",
            "evidence": "an authenticated attacker with zero permissions"
          }
        ],
        "fixed_versions": [
          {
            "value": "7.6.7 or above",
            "evidence": "Upgrade to 7.6.7 or above"
          },
          {
            "value": "7.5.4 or above",
            "evidence": "Upgrade to 7.5.4 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "7.6.0 through 7.6.6",
            "evidence": "7.6.0 through 7.6.6"
          },
          {
            "value": "7.5.0 through 7.5.3",
            "evidence": "7.5.0 through 7.5.3"
          },
          {
            "value": "7.4 all versions",
            "evidence": "7.4 all versions"
          },
          {
            "value": "7.3 all versions",
            "evidence": "7.3 all versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-84385",
        "evidence": "CVE ID CVE-2026-84385"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "Severity Medium"
  },
  "source_id": "official-fortinet-psirt",
  "document_id": 23562,
  "published_at": "2026-09-08T07:00:00+00:00"
}