NanoMQ-Memory-Leak-Research

CVE-2026-36590: EMQ NanoMQ v0.24.9 におけるサービス拒否 このリポジトリには、EMQ NanoMQ v0.24.9 に影響するサービス拒否脆弱性 CVE-2026-36590 に関する公開アドバイザリと技術分析が含まれています。 レビューノート このリポジトリは、CVE レビューのためのアクセス可能な技術リファレンスを提供する目的で公開されています。CVE-2026-36590 の最終的な分類は、CVE チームまたは該当する CNA によって決定されます。 NanoMQ...

CVE-2026-73863

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's broker-side MQTT v5 nmqsubinfodecode function in nng/src/sp/protocol/mqtt/mqttparser.c reuses lenofvarint from the outer Properties Length while parsing each SUBSCRIPTIONIDENTIFIER. A remote client can send a SUBSCRIBE packet with a multi-byte...

CVE-2026-61633

NanoMQ is an MQTT broker. Prior to 0.24.14, the NanoMQ client function nnimqttmsgdecodeunsubscribe in nng/src/supplemental/mqtt/mqttcodec.c does not handle a failed readuint16 while counting topics in a malformed UNSUBSCRIBE packet. A zero-length topic followed by trailing data can leave buf.curp...

CVE-2026-44639

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's MQTT v5 property decoder in nng/src/supplemental/mqtt/mqttcodec.c uses propertyappend to walk the entire linked list for each property added by decodebufproperties. A remote unauthenticated client can supply a PUBLISH or SUBSCRIBE packet...

CVE-2026-73863 NanoMQ: Heap-Buffer-Overflow in `nmq_subinfo_decode()` During MQTT v5 SUBSCRIBE Parsing

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's broker-side MQTT v5 nmqsubinfodecode function in nng/src/sp/protocol/mqtt/mqttparser.c reuses lenofvarint from the outer Properties Length while parsing each SUBSCRIPTIONIDENTIFIER. A remote client can send a SUBSCRIBE packet with a multi-byte...

CVE-2026-73863 NanoMQ: Heap-Buffer-Overflow in `nmq_subinfo_decode()` During MQTT v5 SUBSCRIBE Parsing

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's broker-side MQTT v5 nmqsubinfodecode function in nng/src/sp/protocol/mqtt/mqttparser.c reuses lenofvarint from the outer Properties Length while parsing each SUBSCRIPTIONIDENTIFIER. A remote client can send a SUBSCRIBE packet with a multi-byte...

EUVD-2026-83050

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's broker-side MQTT v5 nmqsubinfodecode function in nng/src/sp/protocol/mqtt/mqttparser.c reuses lenofvarint from the outer Properties Length while parsing each SUBSCRIPTIONIDENTIFIER. A remote client can send a SUBSCRIBE packet with a multi-byte...

CVE-2026-73863

NanoMQ, an MQTT broker, contains a heap-buffer-overflow in the broker-side function nmq_subinfo_decode() located in nng/src/sp/protocol/mqtt/mqtt_parser.c. The root cause is an incorrect reuse of the len_of_varint value from the outer Properties Length field when parsing repeated SUBSCRIPTION_IDE...

CVE-2026-61633 NanoMQ: Infinite Loop in UNSUBSCRIBE Decoder Leading to Remote DoS

NanoMQ is an MQTT broker. Prior to 0.24.14, the NanoMQ client function nnimqttmsgdecodeunsubscribe in nng/src/supplemental/mqtt/mqttcodec.c does not handle a failed readuint16 while counting topics in a malformed UNSUBSCRIBE packet. A zero-length topic followed by trailing data can leave buf.curp...

CVE-2026-61633

NanoMQ (MQTT broker) contains a flaw in its client-side function nni_mqtt_msg_decode_unsubscribe() in mqtt_codec.c. A malformed UNSUBSCRIBE packet with a zero-length topic followed by trailing data can cause a failed read_uint16() that leaves the buffer position unchanged while the topic count ke...

CVE-2026-61633 NanoMQ: Infinite Loop in UNSUBSCRIBE Decoder Leading to Remote DoS

NanoMQ is an MQTT broker. Prior to 0.24.14, the NanoMQ client function nnimqttmsgdecodeunsubscribe in nng/src/supplemental/mqtt/mqttcodec.c does not handle a failed readuint16 while counting topics in a malformed UNSUBSCRIBE packet. A zero-length topic followed by trailing data can leave buf.curp...

EUVD-2026-83048

NanoMQ is an MQTT broker. Prior to 0.24.14, the NanoMQ client function nnimqttmsgdecodeunsubscribe in nng/src/supplemental/mqtt/mqttcodec.c does not handle a failed readuint16 while counting topics in a malformed UNSUBSCRIBE packet. A zero-length topic followed by trailing data can leave buf.curp...

CVE-2026-61633 NanoMQ: Infinite Loop in UNSUBSCRIBE Decoder Leading to Remote DoS

NanoMQ is an MQTT broker. Prior to 0.24.14, the NanoMQ client function nnimqttmsgdecodeunsubscribe in nng/src/supplemental/mqtt/mqttcodec.c does not handle a failed readuint16 while counting topics in a malformed UNSUBSCRIBE packet. A zero-length topic followed by trailing data can leave buf.curp...

CVE-2026-44639 NanoMQ: O(N²) Denial of Service in MQTT v5 Property Parsing

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's MQTT v5 property decoder in nng/src/supplemental/mqtt/mqttcodec.c uses propertyappend to walk the entire linked list for each property added by decodebufproperties. A remote unauthenticated client can supply a PUBLISH or SUBSCRIBE packet...

CVE-2026-44639 NanoMQ: O(N²) Denial of Service in MQTT v5 Property Parsing

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's MQTT v5 property decoder in nng/src/supplemental/mqtt/mqttcodec.c uses propertyappend to walk the entire linked list for each property added by decodebufproperties. A remote unauthenticated client can supply a PUBLISH or SUBSCRIBE packet...

CVE-2026-44639 NanoMQ: O(N²) Denial of Service in MQTT v5 Property Parsing

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's MQTT v5 property decoder in nng/src/supplemental/mqtt/mqttcodec.c uses propertyappend to walk the entire linked list for each property added by decodebufproperties. A remote unauthenticated client can supply a PUBLISH or SUBSCRIBE packet...

EUVD-2026-83047

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's MQTT v5 property decoder in nng/src/supplemental/mqtt/mqttcodec.c uses propertyappend to walk the entire linked list for each property added by decodebufproperties. A remote unauthenticated client can supply a PUBLISH or SUBSCRIBE packet...

CVE-2026-44639

NanoMQ , an MQTT broker, is vulnerable to an O(N²) denial of service in its MQTT v5 property decoder (in nng/src/supplemental/mqtt/mqtt_codec.c). The root cause is that property_append() traverses the entire linked list for each property added by decode_buf_properties(), resulting in quadratic CP...

CVE-2026-61633: Loop with Unreachable Exit Condition

NanoMQ is an MQTT broker. Prior to 0.24.14, the NanoMQ client function nnimqttmsgdecodeunsubscribe in nng/src/supplemental/mqtt/mqttcodec.c does not handle a failed readuint16 while counting topics in a malformed UNSUBSCRIBE packet. A zero-length topic followed by trailing data can leave buf.curp...

CVE-2026-73863: Out-of-bounds Read

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's broker-side MQTT v5 nmqsubinfodecode function in nng/src/sp/protocol/mqtt/mqttparser.c reuses lenofvarint from the outer Properties Length while parsing each SUBSCRIPTIONIDENTIFIER. A remote client can send a SUBSCRIBE packet with a multi-byte...