{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-95844",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-09-22T16:39:45.793Z",
        "datePublished": "2026-09-23T16:29:49.416Z",
        "dateUpdated": "2026-09-23T16:29:49.416Z"
    },
    "containers": {
        "cna": {
            "title": "Moquette deeply nested MQTT topics can cause stack exhaustion",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-674",
                            "lang": "en",
                            "description": "CWE-674: Uncontrolled Recursion",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.7,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/moquette-io/moquette/security/advisories/GHSA-5f42-97gr-vfhq"
                },
                {
                    "name": "https://github.com/moquette-io/moquette/commit/ca17e0be19e86d5e291f4532dfdc94616c8e0049",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/moquette-io/moquette/commit/ca17e0be19e86d5e291f4532dfdc94616c8e0049"
                },
                {
                    "name": "https://github.com/moquette-io/moquette/releases/tag/v0.18.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/moquette-io/moquette/releases/tag/v0.18.1"
                }
            ],
            "affected": [
                {
                    "vendor": "moquette-io",
                    "product": "moquette",
                    "versions": [
                        {
                            "version": "< 0.18.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-23T16:29:49.416Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, Moquette does not limit the depth of topic names and topic filters before processing them through recursive CTrie insertion and matching operations. A remote client can publish or subscribe with a deeply nested topic, causing a StackOverflowError that disrupts session processing and can deny service to broker clients. This issue is fixed in version 0.18.1."
                }
            ],
            "source": {
                "advisory": "GHSA-446h-6w49-5x92",
                "discovery": "UNKNOWN"
            }
        }
    }
}