CVE-2026-93575

CVE CVE-2026-93575EUVD EUVD-2026-82869Published 2026-09-18T10:53:48.000ZLast changed 2026-09-25T08:29:03.000ZCVSS 7.5

What the advisory describes

A flaw was found in Netty's MqttDecoder. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted MQTT CONNECT packet. The decoder fails to properly validate the 'Properties Length' against the 'Remaining Length', allowing an attacker to bypass size limits. This leads to excessive memory and CPU consumption, resulting in a denial of service (DoS) due to an OutOfMemoryError.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Red Hat — Red Hat AMQ Broker 7
• Red Hat — Red Hat Fuse 7
• Red Hat — Red Hat JBoss Enterprise Application Platform 7
• Red Hat — Red Hat Single Sign-On 7
• Red Hat — Red Hat build of Apache Camel for Spring Boot 4

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Red Hat — Red Hat JBoss Enterprise Application Platform

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.