Skip to content
fr Sign in
8.7 High

CVE-2026-48059 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. Prior to versions 4.1.135.Final and 4.2.15.Final, the HAProxy PROXY protocol v2 codec in netty leaks native or heap memory on every connection when a client sends a syntactically valid header containing nested `PP2_TYPE_SSL` TLVs (type-length-value records) at depth two or greater. The leak occurs on the successful parse path — no exception is thrown, the message fires downstream, the decoder removes itself, and the application releases the `HAProxyMessage` normally. Yet the underlying cumulation buffer (a pooled, potentially direct `ByteBuf` allocated by the channel) remains permanently pinned. 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 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
Red Hat build of Apache Camel - HawtIO 4 Versions not published
Show the 28 other branches
Product Affected versions Fixed in
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 Fuse 7 Versions not published
Red Hat JBoss Enterprise Application Platform 7 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
Streams for Apache Kafka 2.9.4 Versions not published
Red Hat OpenShift Dev Spaces 3.29 1782989027 earliest → < 1782989027 1782989027
Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16 Versions not published
Red Hat Data Grid 8.6.2 Versions not published
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 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 OpenShift AI 2.25 1788198681 earliest → < 1788198681 1788198681
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
Track this CVE