Netty is a network application framework for development of protocol servers and clients. Versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, are vulnerable to security control bypass during the origin evaluation process. CorsHandler provides a shortCircuit() configuration designed to reject unauthorized cross-origin requests immediately, acting as a security control before requests reach the application. However, due to a logical operator error in the origin evaluation process, this protection can be entirely bypassed. An attacker can bypass the short-circuit mechanism by sending a request with an Origin: null header. This failure forwards unauthorized requests to the backend application, bypassing intended access controls. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Red Hat Jboss Eap | — | Upgrade Red Hat JBoss EAP to the latest version | Sep 23, 2026 | Jul 21, 2026 |
| Redhat_linux | — | Upgrade eap8-hibernate-enversUpgrade eap8-wildfly-modulesUpgrade eap8-ironjacamar-jdbcUpgrade eap8-ironjacamar-core-apiUpgrade eap8-jackson-datatype-jsr310Upgrade eap8-jackson-modules-baseUpgrade eap8-log4jUpgrade eap8-netty-resolverUpgrade eap8-ironjacamar-core-implUpgrade eap8-netty-codec-socksUpgrade eap8-activemq-artemis-journalUpgrade eap8-netty-handlerUpgrade eap8-wildflyUpgrade eap8-activemq-artemis-hornetq-protocolUpgrade eap8-netty-transport-classes-epollUpgrade eap8-codemodelUpgrade eap8-hibernate-coreUpgrade eap8-jbossws-spiUpgrade eap8-jbossws-apiUpgrade eap8-bouncycastle-provUpgrade eap8-ironjacamar-common-spiUpgrade eap8-ironjacamar-validatorUpgrade eap8-jackson-module-jakarta-xmlbind-annotationsUpgrade eap8-jackson-databindUpgrade eap8-bouncycastle-pgUpgrade eap8-bouncycastle-pkixUpgrade eap8-eap-product-conf-wildfly-ee-feature-packUpgrade eap8-activemq-artemis-cliUpgrade eap8-jboss-remotingUpgrade eap8-xsomUpgrade eap8-ironjacamarUpgrade eap8-jaxb-xjcUpgrade eap8-activemq-artemis-serverUpgrade eap8-cryptacularUpgrade eap8-netty-transportUpgrade eap8-activemq-artemis-commonsUpgrade eap8-activemq-artemis-dtoUpgrade eap8-jackson-dataformats-textUpgrade eap8-wildfly-java-jdk21Upgrade eap8-jackson-jaxrs-baseUpgrade eap8-apache-cxf-servicesUpgrade eap8-nettyUpgrade eap8-wildfly-elytronUpgrade eap8-xml-securityUpgrade eap8-netty-bufferUpgrade eap8-activemq-artemisUpgrade eap8-activemq-artemis-jdbc-storeUpgrade eap8-apache-cxfUpgrade eap8-netty-transport-native-epoll-debuginfoUpgrade eap8-saaj-implUpgrade eap8-parssonUpgrade eap8-jaxb-jxcUpgrade eap8-slf4j-apiUpgrade eap8-activemq-artemis-jakarta-serverUpgrade eap8-rngomUpgrade eap8-httpcomponents-asyncclientUpgrade eap8-netty-transport-native-unix-commonUpgrade eap8-jackson-modules-java8Upgrade eap8-bouncycastle-jmailUpgrade eap8-netty-commonUpgrade eap8-jbossws-jaxws-undertow-httpspiUpgrade eap8-jaxbUpgrade eap8-netty-resolver-dnsUpgrade eap8-undertowUpgrade eap8-ws-commons-XmlSchemaUpgrade eap8-jaxb-coreUpgrade eap8-ironjacamar-deployers-commonUpgrade eap8-ironjacamar-common-implUpgrade eap8-activemq-artemis-jakarta-clientUpgrade eap8-jackson-datatype-jdk8Upgrade eap8-ironjacamar-common-apiUpgrade eap8-apache-cxf-rtUpgrade eap8-jackson-coreUpgrade eap8-activemq-artemis-jakarta-service-extensionsUpgrade eap8-nimbus-jose-jwtUpgrade eap8-wildfly-elytron-toolUpgrade eap8-activemq-artemis-jakarta-raUpgrade eap8-activemq-artemis-core-clientUpgrade eap8-jsf-implUpgrade eap8-bouncycastleUpgrade eap8-netty-codecUpgrade eap8-jackson-dataformat-yamlUpgrade eap8-apache-cxf-toolsUpgrade eap8-netty-transport-native-epollUpgrade eap8-neethiUpgrade eap8-jaxb-runtimeUpgrade eap8-jaxbintrosUpgrade eap8-artemis-wildfly-integrationUpgrade eap8-slf4jUpgrade eap8-netty-codec-dnsUpgrade eap8-jackson-annotationsUpgrade eap8-jackson-jaxrs-json-providerUpgrade eap8-eap-product-conf-parentUpgrade eap8-activemq-artemis-hqclient-protocolUpgrade eap8-netty-codec-httpUpgrade eap8-jakarta-xml-bind-apiUpgrade eap8-activemq-artemis-selectorUpgrade eap8-txw2Upgrade eap8-relaxng-datatypeUpgrade eap8-netty-handler-proxyUpgrade eap8-jbossws-common-toolsUpgrade eap8-bouncycastle-utilUpgrade eap8-hibernateUpgrade eap8-jbossws-cxfUpgrade eap8-jboss-loggingUpgrade eap8-wildfly-javadocs | Sep 24, 2026 | Jul 21, 2026 |
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