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8.1 High

CVE-2026-44249 Netty is a network application framework for development of protocol servers and clients

Description

Netty is a network application framework for development of protocol servers and clients. In netty-handler prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can bypass IPv6 subnet rules due to an incorrect masking operation in IpSubnetFilterRule.compareTo(). Valid public IP addresses can bypass the restrictions. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

Affected products and versions

Product Affected versions Fixed in
netty 4.2 4.2.0.Final → < 4.2.15.Final 4.2.15.Final
netty 4.1 earliest → < 4.1.135.Final 4.1.135.Final
Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.2.SP1 Versions not published
Red Hat Offline Knowledge Portal 1.2.6 Versions not published
Red Hat build of Quarkus 3.27.4.SP1 Versions not published
Red Hat build of Quarkus 3.33.2.SP1 Versions not published
Cryostat 4 Versions not published
OpenShift Serverless Versions not published
Red Hat AMQ Broker 7 Versions not published
Show the 44 other branches
Product Affected versions Fixed in
Red Hat AMQ Clients Versions not published
Red Hat build of Apache Camel - HawtIO 4 Versions not published
Red Hat build of Apache Camel 4 for Quarkus 3 Versions not published
Red Hat build of Apache Camel for Spring Boot 4 Versions not published
Red Hat build of Apicurio Registry 3 Versions not published
Red Hat build of Debezium 3 Versions not published
Red Hat Build of Keycloak Versions not published
Red Hat Data Grid 8 Versions not published
Red Hat Enterprise Linux AI (RHEL AI) 3 Versions not published
Red Hat Fuse 7 Versions not published
Red Hat JBoss Enterprise Application Platform 7 Versions not published
Red Hat JBoss Enterprise Application Platform 8 Versions not published
Red Hat JBoss Enterprise Application Platform Expansion Pack Versions not published
Red Hat OpenShift AI (RHOAI) Versions not published
Red Hat OpenShift Dev Spaces Versions not published
streams for Apache Kafka 2 Versions not published
streams for Apache Kafka 3 Versions not published
Red Hat Satellite 6 Versions not published
Red Hat Single Sign-On 7 Versions not published
Red Hat Offline Knowledge Portal 1.2.7 1782239370 earliest → < 1782239370 1782239370
Streams for Apache Kafka 2.9.4 Versions not published
Red Hat OpenShift Dev Spaces 3.29 1784830552 earliest → < 1784830552 1784830552
Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16 Versions not published
Red Hat Offline Knowledge Portal 1.2.3 1782239370 earliest → < 1782239370 1782239370
Red Hat Data Grid 8.6.2 Versions not published
Red Hat Offline Knowledge Portal 1.2.4 1782239370 earliest → < 1782239370 1782239370
Red Hat Offline Knowledge Portal 1.2.9 1782239370 earliest → < 1782239370 1782239370
Cryostat 4 on RHEL 9 4.2 earliest → < 4.2.0-13 4.2.0-13
Red Hat JBoss Enterprise Application Platform 8.1 Versions not published
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 Versions not published
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 Versions not published
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 Versions not published
Red Hat Offline Knowledge Portal 1.2.5 1782239370 earliest → < 1782239370 1782239370
Red Hat JBoss Enterprise Application Platform 7.4.25 Versions not published
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Versions not published
Streams for Apache Kafka 3.2.1 Versions not published
Red Hat Offline Knowledge Portal 1.2.10 1782239370 earliest → < 1782239370 1782239370
Red Hat JBoss Enterprise Application Platform 8.1.7.GA 4.1 earliest → < 4.1.135.Final-redhat-00001 4.1.135.Final-redhat-00001
Red Hat Offline Knowledge Portal 1.2.12 1782239370 earliest → < 1782239370 1782239370
Red Hat OpenShift AI 2.25 1788198681 earliest → < 1788198681 1788198681
Red Hat AMQ Broker 7.13.6 Versions not published
Red Hat AMQ Broker 7.14.1 Versions not published
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 Versions not published
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 Versions not published

References

Timeline

  1. Published
  2. Last modified

Other CVEs of netty

The 95 CVEs of netty →
CVE-2026-100666 Netty's HttpServerCodec (io.netty:netty-codec-http) in versions 4.2.0.Final through 4.2.16.Final and in versions up to… 6.9 Medium CVE-2026-100665 Netty versions from 4.2.11.Final before 4.2.18.Final contain an incomplete hostname verification fix in the QUIC… 8.7 High CVE-2026-100664 Netty's HTTP/3 codec (io.netty:netty-codec-http3) versions 4.2.2.Final through 4.2.17.Final builds the HTTP/3 :authority… 8.7 High CVE-2026-100663 Netty's HTTP/3 codec (io.netty:netty-codec-http3) from 4.2.2.Final through 4.2.17.Final does not special-case HTTP/1… 8.7 High
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