CVE-2026-15318

A weakness has been identified in Sipeed PicoClaw up to 0.2.9. Affected by this issue is some unknown functionality of the file pkg/channels/mqtt/mqtt.go of the component MQTT Channel Handler. This manipulation of the argument clientid causes incorrect authorization. The attack is possible to be...

PT-2026-57303

RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, RabbitMQ AMQP 0-9-1 allows an existing consumer to keep receiving messages after OAuth token expiry or connection.update secret refresh to reduced scopes because existing consumers are not canceled or reauthorized at delivery time afte...

CVE-2026-58208

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a WebSocket listener could route requests for the MQTT-over-WebSocket path into MQTT handling even when MQTT was not configured, allowing an unauthenticated client with...

CVE-2026-58208

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a WebSocket listener could route requests for the MQTT-over-WebSocket path into MQTT handling even when MQTT was not configured, allowing an unauthenticated client with...

CVE-2026-58210

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, an unauthenticated MQTT client could cause the server to retain large incomplete MQTT CONNECT packets before authentication completed, consuming server memory while the...

CVE-2026-58214

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, an authenticated MQTT client could subscribe to the internal $MQTT.deliver.pubrel subject family, bypassing configured subscribe permissions and exposing MQTT QoS2 protoc...

CVE-2026-58213

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as NATS protocol data to route or leafnode connections, corrupti...

PT-2026-56559

Name of the Vulnerable Software and Affected Versions NATS Server versions prior to 2.14.3 NATS Server versions prior to 2.12.12 Description MQTT retained message delivery and QoS1+ durable replay may deliver messages to subscribers even if the original topics match a configured subscribe deny...

PT-2026-56582

Name of the Vulnerable Software and Affected Versions NATS Server versions prior to 2.14.3 NATS Server versions prior to 2.12.12 Description A WebSocket listener may route requests for the MQTT-over-WebSocket path to MQTT handling processes even if MQTT is not configured. This allows an...

PYSEC-2026-1131 Apache Airflow Celery provider Insertion of Sensitive Information into Log File vulnerability

Insertion of Sensitive Information into Log File vulnerability in Apache Airflow Celery provider, Apache Airflow. Sensitive information logged as clear text when rediss, amqp, rpc protocols are used as Celery result backend Note: the vulnerability is about the information exposed in the logs not...

[SECURITY] Fedora 44 Update: librabbitmq-0.16.0-1.fc44

This is a C-language AMQP client library for use with AMQP servers speaking protocol versions 0-9-1...

CVE-2026-44838

A flaw was found in RabbitMQ. An authenticated MQTT Message Queuing Telemetry Transport user can bypass topic-level authorization by injecting regular expression operators. This occurs because the client ID, provided by the user in the MQTT CONNECT packet, is inserted into authorization regex...

EUVD-2026-34200

The local MQTT broker does not enforce topic-level Access Control Lists ACLs. This allows any client to subscribe using wildcard characters or + to enumerate hidden network devices or publish rogue control commands...

CVE-2026-49199 Predator Connect W6x: RCE via MQTT

Crafted MQTT messages can trigger command injection, resulting in root-level code execution on the target device...

CVE-2026-44838 RabbitMQ MQTT Topic Permission Authorization Bypass

RabbitMQ is a messaging and streaming broker. From 4.2.0 to before 4.2.4, RabbitMQ's MQTT plugin allows for topic-level authorization using regular expressions with variable substitution. Administrators can create patterns such as ^clientid-sensors$ to restrict user access to topics that include...

Security Analysis of a Communication Protocol: MQTT

This paper analyzes the security of the Message Queuing Telemetry Transport MQTT protocol in the context of the Internet of Things IoT. The main objective consists of identifying vulnerabilities and proposing security improvements. Adopting a hybrid methodology, a theoretical review was combined...

CVE-2026-33838

Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally...

CVE-2026-34329

Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over an adjacent network...

DEBIAN-CVE-2026-44248

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader method is called before the...

PT-2026-40614

Name of the Vulnerable Software and Affected Versions Devolutions Server versions 2026.1.21 and 2026.2.5 Microsoft Message Queuing versions prior to Windows Server 2025 Description Devolutions Server contains improper access control in PAM account discovery, which allows an authenticated user to...