{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "8.0.6"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "52490b8c26909772801afed98df63a6d62f3af18"
            },
            {
              "fixed": "feb0ff91159cea474a983adf92e4b56fb16e4ffc"
            },
            {
              "fixed": "4c28cc1b4ac64f48efdca6ce3e09748227a04a7e"
            }
          ],
          "repo": "https://github.com/oisf/suricata",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-56wx-7hqh-wfgr"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-755"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63450.json"
  },
  "details": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverable protocol event. The fatal state disables FTP application-layer parsing for the remainder of the TCP flow, so later commands can evade parser-dependent rules and logging; IPS mode instead drops the flow. This issue is fixed in version 8.0.6.",
  "id": "CVE-2026-63450",
  "modified": "2026-09-20T11:30:27.242872487Z",
  "published": "2026-09-18T20:13:42.549Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"
    },
    {
      "type": "WEB",
      "url": "https://redmine.openinfosecfoundation.org/issues/8659"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63450.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63450"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OISF/suricata/pull/15704"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS app-layer detection"
}