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CVE-2026-57227 (GCVE-0-2026-57227)

Vulnerability from cvelistv5 – Published: 2026-09-18 20:14 – Updated: 2026-09-18 20:14
VLAI
Title
Suricata mqtt: unbounded resource consumption from repeated pubrec and pubrel messages
Summary
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 7.0.0 until 7.0.17 and 8.0.6, the MQTT parser in rust/src/mqtt/mqtt.rs permits repeated PUBREC or PUBREL messages to be appended to one transaction without a limit. Crafted MQTT traffic can grow transaction state indefinitely, consuming CPU and memory and causing slowdown or denial of service. This issue is fixed in versions 8.0.6 and 7.0.17.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version CPE status
OISF suricata Affected: >= 8.0.0, < 8.0.6
Affected: >= 7.0.0, < 7.0.17
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "suricata",
          "vendor": "OISF",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.0.6"
            },
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              "status": "affected",
              "version": "\u003e= 7.0.0, \u003c 7.0.17"
            }
          ]
        }
      ],
      "descriptions": [
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          "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 7.0.0 until 7.0.17 and 8.0.6, the MQTT parser in rust/src/mqtt/mqtt.rs permits repeated PUBREC or PUBREL messages to be appended to one transaction without a limit. Crafted MQTT traffic can grow transaction state indefinitely, consuming CPU and memory and causing slowdown or denial of service. This issue is fixed in versions 8.0.6 and 7.0.17."
        }
      ],
      "metrics": [
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            "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",
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          }
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              "type": "CWE"
            }
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        },
        {
          "descriptions": [
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              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
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              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-18T20:14:55.843Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
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        },
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          "tags": [
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          "url": "https://github.com/OISF/suricata/commit/03ba8a71d827dd36a0ceb512f45d2f440f260a3a"
        },
        {
          "name": "https://github.com/OISF/suricata/commit/5cde93dea38533c9b225128ba9d54955997dc273",
          "tags": [
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          ],
          "url": "https://github.com/OISF/suricata/commit/5cde93dea38533c9b225128ba9d54955997dc273"
        },
        {
          "name": "https://github.com/OISF/suricata/commit/c03666d261256df5a2d1f5800872da8a5addf6a5",
          "tags": [
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          ],
          "url": "https://github.com/OISF/suricata/commit/c03666d261256df5a2d1f5800872da8a5addf6a5"
        },
        {
          "name": "https://github.com/OISF/suricata/releases/tag/suricata-7.0.17",
          "tags": [
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          "url": "https://github.com/OISF/suricata/releases/tag/suricata-7.0.17"
        },
        {
          "name": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6",
          "tags": [
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          ],
          "url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"
        },
        {
          "name": "https://redmine.openinfosecfoundation.org/issues/8525",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://redmine.openinfosecfoundation.org/issues/8525"
        }
      ],
      "source": {
        "advisory": "GHSA-7h2h-hpj2-9w6p",
        "discovery": "UNKNOWN"
      },
      "title": "Suricata mqtt: unbounded resource consumption from repeated pubrec and pubrel messages"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-57227",
    "datePublished": "2026-09-18T20:14:55.843Z",
    "dateReserved": "2026-06-24T02:21:33.811Z",
    "dateUpdated": "2026-09-18T20:14:55.843Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "suricata",
                "vendor": "OISF",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 8.0.0, \u003c 8.0.6"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 7.0.0, \u003c 7.0.17"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 7.0.0 until 7.0.17 and 8.0.6, the MQTT parser in rust/src/mqtt/mqtt.rs permits repeated PUBREC or PUBREL messages to be appended to one transaction without a limit. Crafted MQTT traffic can grow transaction state indefinitely, consuming CPU and memory and causing slowdown or denial of service. This issue is fixed in versions 8.0.6 and 7.0.17."
          }
        ],
        "id": "CVE-2026-57227",
        "lastModified": "2026-09-18T21:17:01.217",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
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                "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"
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              "impactScore": 3.6,
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              "type": "Secondary"
            }
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        },
        "published": "2026-09-18T21:17:01.217",
        "references": [
          {
            "source": "security-advisories@github.com",
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          },
          {
            "source": "security-advisories@github.com",
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            "url": "https://github.com/OISF/suricata/commit/c03666d261256df5a2d1f5800872da8a5addf6a5"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/OISF/suricata/releases/tag/suricata-7.0.17"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/OISF/suricata/security/advisories/GHSA-7h2h-hpj2-9w6p"
          },
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            "source": "security-advisories@github.com",
            "url": "https://redmine.openinfosecfoundation.org/issues/8525"
          }
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        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Received",
        "weaknesses": [
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                "value": "CWE-400"
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                "value": "CWE-770"
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            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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