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vuln-cve/data/2026/63xxx/CVE-2026-63447.json
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{
"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"
}
}
]
}
}