{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-32134",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-03-10T22:19:36.546Z",
        "datePublished": "2026-05-19T17:22:13.431Z",
        "dateUpdated": "2026-05-19T18:01:45.428Z"
    },
    "containers": {
        "cna": {
            "title": "NanoMQ: NULL Pointer Dereference Crash in tcptran_pipe_peer During Session Restore",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-476",
                            "lang": "en",
                            "description": "CWE-476: NULL Pointer Dereference",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2"
                },
                {
                    "name": "https://github.com/nanomq/nanomq/issues/2241",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/nanomq/nanomq/issues/2241"
                },
                {
                    "name": "https://github.com/nanomq/NanoNNG/commit/522ec62e29e60d1122f2aedaa6e702dcf089f7bb",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/nanomq/NanoNNG/commit/522ec62e29e60d1122f2aedaa6e702dcf089f7bb"
                },
                {
                    "name": "https://github.com/nanomq/nanomq/releases/tag/0.24.11",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/nanomq/nanomq/releases/tag/0.24.11"
                }
            ],
            "affected": [
                {
                    "vendor": "nanomq",
                    "product": "nanomq",
                    "versions": [
                        {
                            "version": "< 0.24.11",
                            "status": "affected"
                        }
                    ]
                },
                {
                    "vendor": "nanomq",
                    "product": "NanoNNG",
                    "versions": [
                        {
                            "version": "< 0.24.11",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-05-19T17:22:13.431Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In versions 0.24.10 and below, when NanoMQ handles high-concurrency reconnect traffic using a reconnect-collision payload, the broker can crash due to a NULL pointer dereference during MQTT session resumption for clean_start=0 clients. The transport's p_peer callback (tcptran_pipe_peer()) iterates cpipe->subinfol while copying session metadata from the cached old pipe to the new reconnecting pipe, without checking whether the pointer is NULL. Under a reconnect race, cpipe->subinfol can be freed and set to NULL before session restore invokes this function, resulting in a remote unauthenticated Denial-of-Service (process crash) condition. This issue has been fixed in version 0.24.11."
                }
            ],
            "source": {
                "advisory": "GHSA-q36f-83mh-pcv2",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2",
                        "tags": [
                            "exploit"
                        ]
                    },
                    {
                        "url": "https://github.com/nanomq/nanomq/issues/2241",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-19T17:58:24.262200Z",
                                "id": "CVE-2026-32134",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "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": "2026-05-19T18:01:45.428Z"
                }
            }
        ]
    }
}