Null Byte Injection

Netty is vulnerable to null byte injection. The vulnerability is due to the MqttEncoder not validating client identifiers, topics, usernames, and PUBLISH topic names before encoding, where prohibited null bytes can be inserted into MQTT UTF-8 string fields and attackers can exploit this by...

SUSE SLED15 / SLES15 Security Update : netty, netty-tcnative (SUSE-SU-2026:4391-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4391-1 advisory. - CVE-2026-59902: Netty: Memory Exhaustion in SctpMessageCompletionHandler bsc1275501. - CVE-2026-59903: Netty...

CVE-2026-76816

A flaw was found in Netty. The MqttEncoder component does not properly validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding. This allows an attacker to inject prohibited null bytes into MQTT Message Queuing Telemetry Transport UTF-8 string fields when an...

SUSE CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

Linux Distros Unpatched Vulnerability : CVE-2026-76816

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client...

CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

DEBIAN-CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

EUVD-2026-65093

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816 Netty: MQTT Topic Name and Client ID Validation Bypass

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816

Netty , an asynchronous event-driven network framework, contains a validation bypass in its MqttEncoder prior to versions 4.1.137.Final and 4.2.17.Final . The encoder fails to validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null by...

CVE-2026-76816 Netty: MQTT Topic Name and Client ID Validation Bypass

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

CVE-2026-76816: Improper Input Validation

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.137.Final and 4.2.17.Final, MqttEncoder does not validate client identifiers, will topics, usernames, and PUBLISH topic names before encoding, allowing prohibited null bytes in MQTT UTF-8 string fields and...

PT-2026-81028

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.137.Final Netty versions prior to 4.2.17.Final Description Netty is an asynchronous, event-driven network application framework. The MqttEncoder does not validate client identifiers, will topics, usernames, and...