{"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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-32134", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-19T17:58:24.262200Z"}}}], "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"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-19T17:57:26.470Z"}}], "cna": {"title": "NanoMQ: NULL Pointer Dereference Crash in tcptran_pipe_peer During Session Restore", "source": {"advisory": "GHSA-q36f-83mh-pcv2", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "nanomq", "product": "nanomq", "versions": [{"status": "affected", "version": "< 0.24.11"}]}, {"vendor": "nanomq", "product": "NanoNNG", "versions": [{"status": "affected", "version": "< 0.24.11"}]}], "references": [{"url": "https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2", "name": "https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/nanomq/nanomq/issues/2241", "name": "https://github.com/nanomq/nanomq/issues/2241", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/nanomq/NanoNNG/commit/522ec62e29e60d1122f2aedaa6e702dcf089f7bb", "name": "https://github.com/nanomq/NanoNNG/commit/522ec62e29e60d1122f2aedaa6e702dcf089f7bb", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/nanomq/nanomq/releases/tag/0.24.11", "name": "https://github.com/nanomq/nanomq/releases/tag/0.24.11", "tags": ["x_refsource_MISC"]}], "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476: NULL Pointer Dereference"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-19T17:22:13.431Z"}}}, "cveMetadata": {"cveId": "CVE-2026-32134", "state": "PUBLISHED", "dateUpdated": "2026-05-19T18:01:45.428Z", "dateReserved": "2026-03-10T22:19:36.546Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-05-19T17:22:13.431Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"cveTags": [], "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."}], "id": "CVE-2026-32134", "lastModified": "2026-05-19T19:16:48.710", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-19T18:16:21.147", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nanomq/NanoNNG/commit/522ec62e29e60d1122f2aedaa6e702dcf089f7bb"}, {"source": "security-advisories@github.com", "url": "https://github.com/nanomq/nanomq/issues/2241"}, {"source": "security-advisories@github.com", "url": "https://github.com/nanomq/nanomq/releases/tag/0.24.11"}, {"source": "security-advisories@github.com", "url": "https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/nanomq/nanomq/issues/2241"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.24.11)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "nanomq", "source": "cna", "vendor": "nanomq"}, "product": "nanomq", "vendor": "nanomq"}], "created": "2026-05-19T18:30:11.289294+00:00", "updated": "2026-05-19T19:00:11.318869+00:00", "vendors": ["nanomq", "nanomq$PRODUCT$nanomq"]}