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Mqttv5 client should throw MqttException if pubAck/pubRec is received with reason code >= 0x80

Status: Open.

#1105In eclipse-paho/paho.mqtt.java;

· harshitsharma635 opened on Jun 25, 2026

[BUG] Persisted alias-only QoS 1/2 PUBLISH causes RC 148 (reconnect) and RC 130 (restart) infinite disconnect loop — gap in #527 fix

Status: Open.

#1104In eclipse-paho/paho.mqtt.java;

· vpeddada-tibco opened on Jun 18, 2026

Mqttv5 client throws MqttException when clean session is using Server assigned clientID with default file persistence

Status: Open.

#1102In eclipse-paho/paho.mqtt.java;

· harshitsharma635 opened on May 26, 2026

CVE-2025-10543

Status: Open.

#1101In eclipse-paho/paho.mqtt.java;

· cyberrranger opened on Mar 26, 2026

Eclipse Paho MQTT v5 Client subscribe() Method Infinite Recursion Causes StackOverflowError

Status: Open.

#1100In eclipse-paho/paho.mqtt.java;

· sushijia123 opened on Jan 28, 2026

Multiple CONNECT frames are sent during a reconnection.

Status: Open.

#1099In eclipse-paho/paho.mqtt.java;

· freyssin opened on Jan 16, 2026

Connections pending during the reconnection process.

Status: Open.

#1098In eclipse-paho/paho.mqtt.java;

· freyssin opened on Jan 16, 2026

Race condition between disconnect() and close() leaves zombie client/threads behind

Status: Open.

#1093In eclipse-paho/paho.mqtt.java;

· MortronMeymo opened on Nov 4, 2025

MqttException v3 does not have error code in its message

Status: Open.

#1090In eclipse-paho/paho.mqtt.java;

· scrat98 opened on Sep 25, 2025

The connect time for mqtt in version 1.2.5 has increased by approximately 300ms compared to version 1.2.0

Status: Open.

#1089In eclipse-paho/paho.mqtt.java;

· note123456789a opened on Sep 11, 2025

Unexpected behavior while using single level wildcard + for the subscriber application.

Status: Open.

#1088In eclipse-paho/paho.mqtt.java;

· vpeddada-tibco opened on Sep 3, 2025

Unexpected behavior while using multi level wildcard # for the subscriber application.

Status: Open.

#1087In eclipse-paho/paho.mqtt.java;

· vpeddada-tibco opened on Sep 3, 2025