nats-server: NATS Server: Protocol stream corruption and unintended operation injection via MQTT client subscription filters

A flaw was found in NATS Server. An authenticated MQTT client could exploit this by embedding protocol control characters within subscription filters. These characters would then be forwarded as NATS protocol data to route or leafnode connections, leading to the corruption of the protocol stream...

EUVD-2026-39991

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqttprotocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument sessionid results in denial of service. The...

CVE-2026-13491 78 xiaozhi-esp32 MQTT Goodbye mqtt_protocol.cc GetInstance denial of service

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqttprotocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument sessionid results in denial of service. The...

CVE-2026-13491

The CVE-2026-13491 entry concerns 78 xiaozhi-esp32 (up to version 2.2.6) and identifies a vulnerability in the MQTT Goodbye Handler. The issue lies in Application::GetInstance within main/protocols/mqtt_protocol.cc, where manipulating the session_id argument can trigger a denial of service. The a...

CVE-2026-13491

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqttprotocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument sessionid results in denial of service. The...

CVE-2026-13491 78 xiaozhi-esp32 MQTT Goodbye mqtt_protocol.cc GetInstance denial of service

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqttprotocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument sessionid results in denial of service. The...

PT-2026-53104

Name of the Vulnerable Software and Affected Versions xiaozhi-esp32 versions prior to 2.2.7 Description A remote denial of service can be triggered through the manipulation of the session id argument. This issue resides within the Application::GetInstance function located in the main/protocols/mq...

ROOT-APP-GOBINARY-CVE-2025-10543 CVE-2025-10543 in rootio-github.com/eclipse/paho.mqtt.golang - Patched by Root

Root has patched CVE-2025-10543 in the rootio-github.com/eclipse/paho.mqtt.golang package for Root:Go. Multiple fixed versions available...

CVE-2026-54412 MQTT-C Heap Out-of-Bounds Read and Integer Underflow in mqtt_unpack_publish_response()

LiamBindle MQTT-C through version 1.1.6 contains a heap-based out-of-bounds read and integer underflow in the mqttunpackpublishresponse function in src/mqtt.c that allows a remote unauthenticated attacker controlling an MQTT broker - or able to inject MQTT traffic into an unencrypted session - to...

EUVD-2026-36663

LiamBindle MQTT-C through version 1.1.6 contains a heap-based out-of-bounds read and integer underflow in the mqttunpackpublishresponse function in src/mqtt.c that allows a remote unauthenticated attacker controlling an MQTT broker - or able to inject MQTT traffic into an unencrypted session - to...

CVE-2026-54412

CVE-2026-54412 affects LiamBindle MQTT-C up to v1.1.6. The vulnerability is a heap-based out-of-bounds read and integer underflow in mqtt_unpack_publish_response() (src/mqtt.c). A broker-controlled or injected PUBLISH packet can allow a remote unauthenticated attacker to crash a subscribed MQTT-C...

PT-2026-49135

Name of the Vulnerable Software and Affected Versions LiamBindle MQTT-C versions prior to 1.1.7 Description A heap-based out-of-bounds read and integer underflow exist in the mqtt unpack publish response function within src/mqtt.c. A remote unauthenticated attacker who controls an MQTT broker or...

CVE-2026-50085 Aqara Board IoT insecure debug API

The Aqara Board service op-test.aqara.com accepts arbitrary MQTT command payloads, and forwards them to the platfom's HiveMQ broker without authentication. This is an instance of "CWE-306: Missing Authentication for Critical Function" and has an estimated CVSS...

CVE-2026-50085

The CVE-2026-50085 entry concerns the Aqara Board service at op-test.aqara.com. Connected sources provide concrete details: the service accepts arbitrary MQTT command payloads and forwards them to the platform’s HiveMQ broker without authentication, representing CWE-306 Missing Authentication for...

CVE-2026-50085 Aqara Board IoT insecure debug API

The Aqara Board service op-test.aqara.com accepts arbitrary MQTT command payloads, and forwards them to the platfom's HiveMQ broker without authentication. This is an instance of "CWE-306: Missing Authentication for Critical Function" and has an estimated CVSS...

EUVD-2026-36475

The Aqara Board service op-test.aqara.com accepts arbitrary MQTT command payloads, and forwards them to the platfom's HiveMQ broker without authentication. This is an instance of "CWE-306: Missing Authentication for Critical Function" and has an estimated CVSS...

PT-2026-48876

Name of the Vulnerable Software and Affected Versions Yarbo Android and iOS applications affected versions not specified Description The Android and iOS applications contain hard-coded MQTT broker credentials that are identical across all users and devices. These credentials, embedded in the...

PT-2026-48296

FlashMQ is a MQTT broker/server, designed for multi-CPU environments. Prior to version 1.26.2, authorized clients have the ability to exceed the permitted over-commit of their write buffer and triggering an internal safe-guard exception. This exception was in a path that was not catchable, and...

CVE-2026-7415

The MQTT broker embedded in Yarbo firmware v2.3.9 is configured to allow anonymous connections with no topic-level read or write ACLs. Any host on the same network can subscribe to sensitive telemetry topics or publish control messages directly to the robot without authentication or authorization...

CVE-2026-32324

Anviz CX7 Firmware is vulnerable because the application embeds reusable certificate/key material, enabling decryption of MQTT traffic and potential interaction with device messaging channels at scale...