Description
Netty allows request-line validation to be bypassed when a `DefaultHttpRequest` or `DefaultFullHttpRequest` is created first and its URI is later changed via `setUri()`. The constructors reject CRLF and whitespace characters that would break the start-line, but `setUri()` does not apply the same validation. `HttpRequestEncoder` and `RtspEncoder` then write the URI into the request line verbatim. If attacker-controlled input reaches `setUri()`, this enables CRLF injection and insertion of additional HTTP or RTSP requests, leading to HTTP request smuggling or desynchronization on the HTTP side and request injection on the RTSP side. This issue is fixed in versions 4.2.13.Final and 4.1.133.Final.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| netty | netty | >= 4.2.0.Alpha1, <= 4.2.12.Final, <= 4.1.132.Final | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | netty | No fix yet | — |
| Debian 13 | netty | No fix yet | — |
| Debian 12 | netty | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | netty | No fix yet | — |
| Ubuntu 25.10 | netty | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | netty | No fix yet | — |
| Ubuntu Pro 24.04 LTS | netty | No fix yet | — |
| Ubuntu Pro 22.04 LTS | netty | No fix yet | — |
| Ubuntu Pro 20.04 LTS | netty | No fix yet | — |
| Ubuntu Pro 18.04 LTS | netty | No fix yet | — |
| Ubuntu Pro 16.04 LTS | netty | No fix yet | — |
| Ubuntu Pro 14.04 LTS | netty | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-activemq-artemis +15 | 2.16.0-22.redhat_00057.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-glassfish-jsf | 2.3.14-11.SP11_redhat_00001.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-ironjacamar +8 | 1.5.26-2.Final_redhat_00001.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-jackson-core +10 | 2.18.8-1.redhat_00003.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-jboss-remoting | 5.0.31-3.SP2_redhat_00001.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-jboss-server-migration +2 | 1.10.0-46.Final_redhat_00044.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-netty +26 | 4.1.135-1.Final_redhat_00001.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-picketlink-api +7 | 2.5.5-24.SP12_redhat_00016.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-picketlink-bindings +1 | 2.5.5-30.SP12_redhat_00020.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-undertow | 2.2.40-2.SP3_redhat_00001.1.el7eap | RHSA-2026:53644 |
| Red Hat Jboss Enterprise Application Platform Els 7 | eap7-wildfly +4 | 7.4.25-2.GA_redhat_00001.1.el7eap | RHSA-2026:53644 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | netty | 4.1.133-150200.4.46.1 | SUSE-SU-2026:2308-1 |
| SLES 15 SP7 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
| SLES 15 SP6 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
| SLES 15 SP5 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
| SLES 15 SP4 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
| SLES for SAP 15 SP5 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
| SLES for SAP 15 SP4 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
| SLE HPC 15 SP5 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
| SLE HPC 15 SP4 | netty-tcnative | 2.0.77-150200.3.39.1 | SUSE-SU-2026:2308-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | netty | 4.1.133-1.1 | openSUSE-SU-2026:10795-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | akhq | 0.27.1-r1 | — |
| Wolfi rolling | apache-activemq-artemis | 2.54.0-r1 | — |
| Wolfi rolling | apache-nifi | 2.9.0-r6 | — |
| Wolfi rolling | apache-nifi-registry | 2.9.0-r8 | — |
| Wolfi rolling | apache-pulsar-4.2 | 4.2.1-r2 | — |
| Wolfi rolling | apicurio-registry | 3.2.1-r3 | — |
| Wolfi rolling | celeborn-0.6 | 0.6.3-r3 | — |
| Wolfi rolling | docker-selenium-base | 4.43.0.20260404-r2 | — |
| Wolfi rolling | druid | 37.0.0-r1 | — |
| Wolfi rolling | flyway | 12.6.1-r0 | — |
| Wolfi rolling | infinispan-16.1 | 16.1.3-r2 | — |
| Wolfi rolling | keycloak-26.5 +6 | No fix yet | — |
| Wolfi rolling | keycloak-26.6 +2 | 26.6.1-r2 | — |
| Wolfi rolling | kserve-modelmesh | 0.12.0-r33 | — |
| Wolfi rolling | logstash-9.3 +1 | 9.3.4-r4 | — |
| Wolfi rolling | management-api-for-apache-cassandra-5.0 | 0.1.117-r1 | — |
| Wolfi rolling | opensearch-2 | 2.19.4-r14 | — |
| Wolfi rolling | opensearch-3 +6 | 3.6.0-r5 | — |
| Wolfi rolling | opensearch-3-discovery-ec2 +2 | 3.8.0-r3 | — |
| Wolfi rolling | opensearch-3-security-analytics | 3.7.0-r0 | — |
| Wolfi rolling | selenium-server | 4.44.0-r0 | — |
| Wolfi rolling | sonarqube | 26.7.0.124771-r0 | — |
| Wolfi rolling | spark-4.0-scala-2.13 | 4.0.2-r12 | — |
| Wolfi rolling | spark-4.1-scala-2.13 | 4.1.2-r0 | — |
| Wolfi rolling | strimzi-kafka-operator-kafka-init +6 | 0.51.0-r25 | — |
| Wolfi rolling | tez | 0.10.5-r12 | — |
| Wolfi rolling | thingsboard-tb-node +1 | 4.3.1.1-r5 | — |
| Wolfi rolling | trino-plugin-hive +12 | 481-r0 | — |
| Wolfi rolling | wavefront-proxy | 13.9-r13 | — |
| Wolfi rolling | wildfly-openjdk-17 +1 | 39.0.1-r6 | — |
| Wolfi rolling | zipkin +1 | 3.6.1-r6 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | io.netty:netty-codec-http | < 4.1.133.Final | 4.1.133.Final | GHSA-v8h7-rr48-vmmv |
| Maven | io.netty:netty-codec-http | >= 4.2.0.Alpha1, < 4.2.13.Final | 4.2.13.Final | GHSA-v8h7-rr48-vmmv |
Advisories 5
- RHSA-2026:53644 Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.25 security pdate Red Hat Security Advisories (RHSA) · Nov 13, 2026
- WID-SEC-2026-1372 Netty: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 15, 2026
- WID-SEC-2026-2260 IBM Operational Decision Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 8, 2026
- SUSE-SU-2026:2308-1 Security update for netty, netty-tcnative SUSE / openSUSE Security Updates · Jun 10, 2026
- openSUSE-SU-2026:10795-1 netty-4.1.133-1.1 on GA media SUSE / openSUSE Security Updates · May 17, 2026