{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-63447",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-07-16T19:35:57.767Z",
        "datePublished": "2026-09-18T20:21:06.510Z",
        "dateUpdated": "2026-09-21T18:21:33.801Z"
    },
    "containers": {
        "cna": {
            "title": "Suricata ftp: crafted FTP traffic can cause quadratic CPU consumption",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-407",
                            "lang": "en",
                            "description": "CWE-407: Inefficient Algorithmic Complexity",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/OISF/suricata/security/advisories/GHSA-w394-3g33-3jg9",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/OISF/suricata/security/advisories/GHSA-w394-3g33-3jg9"
                },
                {
                    "name": "https://github.com/OISF/suricata/commit/15bf91c5ccbbbf640cd042e1c96974b262549385",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OISF/suricata/commit/15bf91c5ccbbbf640cd042e1c96974b262549385"
                },
                {
                    "name": "https://github.com/OISF/suricata/commit/82c41905589305e8389ceb793907ccb74798aee5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OISF/suricata/commit/82c41905589305e8389ceb793907ccb74798aee5"
                },
                {
                    "name": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"
                },
                {
                    "name": "https://redmine.openinfosecfoundation.org/issues/8592",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://redmine.openinfosecfoundation.org/issues/8592"
                }
            ],
            "affected": [
                {
                    "vendor": "OISF",
                    "product": "suricata",
                    "versions": [
                        {
                            "version": ">= 8.0.5, < 8.0.6",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-18T20:21:06.510Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.5 until 8.0.6, the FTP parser in src/app-layer-ftp.c can continue allocating transactions after app-layer.protocols.ftp.max-tx is reached while processing one large chunk of FTP command data. The oversized transaction list is repeatedly processed with quadratic complexity after the too_many_transactions event, allowing crafted FTP traffic to degrade packet processing, reduce monitoring visibility, or cause denial of service. This issue is fixed in version 8.0.6."
                }
            ],
            "source": {
                "advisory": "GHSA-w394-3g33-3jg9",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-21T18:21:07.869708Z",
                                "id": "CVE-2026-63447",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-21T18:21:33.801Z"
                }
            }
        ]
    }
}