CVE-2026-47276

In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in propertiesparse allows an authenticated attacker to crash the NanoMQ broker by sending a POST request to /api/v4/mqtt/publish with userproperties as a JSON array instead of a JSON object. The crash occurs because strlen is call...

CVE-2026-47275

In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in nnimqttv5msgdecodeconnect allows a malicious MQTT broker to crash any connecting NanoMQ MQTTv5 client including bridge mode with a single packet, causing remote denial of service via SIGSEGV. In nnimqttv5msgdecodeconnect...

CVE-2026-35217

NanoMQ contains a protocol-semantics flaw in its MQTT v5 SUBSCRIBE handling: if a subscription entry is missing the final 1-byte Subscription Options field, the broker may still accept the malformed packet and install the subscription into internal broker state. Under a specific packet-length...

CVE-2026-47276 NULL Pointer Dereference in REST API properties_parse via Malformed user_properties

In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in propertiesparse allows an authenticated attacker to crash the NanoMQ broker by sending a POST request to /api/v4/mqtt/publish with userproperties as a JSON array instead of a JSON object. The crash occurs because strlen is call...

CVE-2026-47276

CVE-2026-47276 affects NanoMQ up to version 0.24.11: a NULL pointer dereference in properties_parse() when processing user_properties, allowing an authenticated attacker to crash the broker by sending a crafted POST to /api/v4/mqtt/publish with user_properties as a JSON array (strlen on a NULL it...

CVE-2026-47275 nanomq NULL Pointer Dereference in MQTTv5 Client CONNECT Decoder Leading to Remote DoS

In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in nnimqttv5msgdecodeconnect allows a malicious MQTT broker to crash any connecting NanoMQ MQTTv5 client including bridge mode with a single packet, causing remote denial of service via SIGSEGV. In nnimqttv5msgdecodeconnect...

CVE-2026-47275

Nanomq has a NULL pointer dereference in nni_mqttv5_msg_decode_connect() (mqtt_codec.c:1863) for versions ≤ 0.24.11. The code iterates CONNECT properties using prop instead of will_prop; when a packet has no connect-level properties but has will properties, dereferencing prop->next can SIGSEGV...

CVE-2026-35217 NanoMQ Incorrectly Accepts a Malformed SUBSCRIBE and Can Be Driven into an ASAN-Detectable Out-of-Bounds Read

NanoMQ contains a protocol-semantics flaw in its MQTT v5 SUBSCRIBE handling: if a subscription entry is missing the final 1-byte Subscription Options field, the broker may still accept the malformed packet and install the subscription into internal broker state. Under a specific packet-length...

CVE-2026-35217

CVE-2026-35217 affects NanoMQ (MQTT v5) where a SUBSCRIBE packet can be processed even when the final 1-byte Subscription Options field is missing. A specific packet-length construction reveals two manifestations of a single parsing defect: (1) the broker may accept the malformed subscription and...

EUVD-2026-44847

An issue in EMQ NanoMQ v.0.24.9 allows a remote attacker to cause a denial of service via the nniqosdbset function in brokertcp.c component...

CVE-2026-36590

An issue in EMQ NanoMQ v.0.24.9 allows a remote attacker to cause a denial of service via the nniqosdbset function in brokertcp.c component...

CVE-2026-36590

An issue in EMQ NanoMQ v.0.24.9 allows a remote attacker to cause a denial of service via the nniqosdbset function in brokertcp.c component...

CVE-2026-36590

The CVE-2026-36590 entry concerns EMQ NanoMQ (version 0.24.9). Affected component is the broker_tcp.c module, specifically the nni_qos_db_set function, which can be exploited remotely to cause a denial of service. The CVSS v3.1 vector indicates a Network, Low-Privilege, No User Interaction attack...

CVE-2026-36590

An issue in EMQ NanoMQ v.0.24.9 allows a remote attacker to cause a denial of service via the nniqosdbset function in brokertcp.c component...

CVE-2026-32134

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 cleanstart=0...

CVE-2026-44640

NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. Prior to 0.24.14, aio-provdata is stored as nniquicconn during dialing, but read as exquicconn during dialer close. This type confusion causes invalid object interpretation and leads to close-path hang/crash behavior. This...

CVE-2026-32135

NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. Versions prior to 0.24.11 have a remotely triggerable heap buffer overflow in the uriparamparse function of NanoMQ's REST API. The vulnerability occurs due to an off-by-one error when allocating memory for query parameter keys an...

CVE-2026-45151

NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. In 0.24.8 and earlier, quicstreamrecv can dereference a null substream pointer when a substream is in reopen state. The code finishes the AIO with error but does not return before locking c-mtx...

CVE-2026-45151

NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. In 0.24.8 and earlier, quicstreamrecv can dereference a null substream pointer when a substream is in reopen state. The code finishes the AIO with error but does not return before locking c-mtx...

CVE-2026-44640

NanoMQ MQTT Broker NanoMQ is an all-around Edge Messaging Platform. Prior to 0.24.14, aio-provdata is stored as nniquicconn during dialing, but read as exquicconn during dialer close. This type confusion causes invalid object interpretation and leads to close-path hang/crash behavior. This...