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CVE-2026-42580

Updated on 13 May 2026

Severity

6.5 Medium severity

Details

CVSS score
6.5
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty’s chunk size parser silently overflows int, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

Details

Affected product:
Apache CXF , Apache Kafka , Apache Log4j , Apache Lucene , Apache Spark , Eclipse Jetty , Netty , Spring , Wildfly , artemis , async-http-client , avro , azure-sdk-for-java , bolt-connection-java , camel , cassandra-java-driver , couchbase-jvm-clients , docker-java , elasticsearch , grpc-java , grpc-netty , infinispan , java-driver , lettuce , logging-flume , neo4j-java-driver , netty , olingo-odata4 , pulsar , rabbitmq-stream-java-client , rsocket-java , tika , vert.x , wildfly , zendesk-java-client , zookeeper
Affected packages:
wildfly-ejb-client-bom @ 27.0.1.Final (+6935 more)
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty’s chunk size parser silently overflows int, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.