{
  "threat_severity" : "Moderate",
  "public_date" : "2026-05-13T18:12:39Z",
  "bugzilla" : {
    "description" : "netty: io.netty/netty-codec-http: Netty: Request smuggling via malformed Transfer-Encoding parsing",
    "id" : "2477227",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2477227"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
    "status" : "draft"
  },
  "cwe" : "CWE-444",
  "details" : [ "Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty incorrectly parses malformed Transfer-Encoding, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.", "A flaw was found in Netty. This vulnerability allows a remote attacker to perform request smuggling attacks due to incorrect parsing of malformed Transfer-Encoding headers. By exploiting this flaw, an attacker can bypass security controls and potentially access sensitive information or manipulate web traffic." ],
  "statement" : "This Moderate flaw in Netty's HTTP codec allows for request smuggling attacks due to improper parsing of malformed Transfer-Encoding headers. An attacker could exploit this to bypass security controls, potentially leading to unauthorized access to sensitive information or manipulation of web traffic in Red Hat products utilizing affected Netty versions, particularly when deployed behind a proxy or load balancer.",
  "package_state" : [ {
    "product_name" : "Cryostat 4",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:cryostat:4"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-ekb-dispatcher-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-ekb-receiver-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-ddb-streams-source-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-s3-sink-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-s3-source-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-sns-sink-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-sqs-sink-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-sqs-source-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-log-sink-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Fix deferred",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-timer-source-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "Red Hat AMQ Broker 7",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:amq_broker:7"
  }, {
    "product_name" : "Red Hat AMQ Clients",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:amq_clients:2023"
  }, {
    "product_name" : "Red Hat build of Apache Camel 4 for Quarkus 3",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:camel_quarkus:3"
  }, {
    "product_name" : "Red Hat build of Apache Camel for Spring Boot 4",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:camel_spring_boot:4"
  }, {
    "product_name" : "Red Hat build of Apicurio Registry 2",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:service_registry:2"
  }, {
    "product_name" : "Red Hat build of Apicurio Registry 3",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:apicurio_registry:3"
  }, {
    "product_name" : "Red Hat build of Debezium 3",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:debezium:3"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Fix deferred",
    "package_name" : "rhbk/keycloak-rhel9",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Fix deferred",
    "package_name" : "rhbk/keycloak-rhel9-operator",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Fix deferred",
    "package_name" : "rhbk-openshift-rhel9/rhbk-openshift-rhel9",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Fix deferred",
    "package_name" : "rhbk-rhel9-operator/rhbk-rhel9-operator",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat build of OptaPlanner 8",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:optaplanner:::el6"
  }, {
    "product_name" : "Red Hat build of Quarkus",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:quarkus:3"
  }, {
    "product_name" : "Red Hat Data Grid 8",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:jboss_data_grid:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Not affected",
    "package_name" : "bazel6",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Not affected",
    "package_name" : "bazel7",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat Enterprise Linux AI (RHEL AI) 3",
    "fix_state" : "Not affected",
    "package_name" : "bazel8",
    "cpe" : "cpe:/a:redhat:enterprise_linux_ai:3"
  }, {
    "product_name" : "Red Hat Fuse 7",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:jboss_fuse:7"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 7",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:7"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 8",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:8"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:jbosseapxp"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-modelmesh-rhel8",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-modelmesh-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-spark-operator-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-th06-cpu-torch210-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-th06-cpu-torch291-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-th06-cuda130-torch210-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-th06-cuda130-torch291-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-th06-rocm64-torch291-py312-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-trustyai-service-rhel8",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Fix deferred",
    "package_name" : "rhoai/odh-trustyai-service-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Fix deferred",
    "package_name" : "devspaces/multicluster-redirector-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  }, {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Fix deferred",
    "package_name" : "devspaces/openvsx-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  }, {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Fix deferred",
    "package_name" : "devspaces/pluginregistry-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  }, {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Fix deferred",
    "package_name" : "devspaces/server-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  }, {
    "product_name" : "Red Hat Process Automation 7",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_bpms_platform:7"
  }, {
    "product_name" : "Red Hat Satellite 6",
    "fix_state" : "Not affected",
    "package_name" : "candlepin",
    "cpe" : "cpe:/a:redhat:satellite:6"
  }, {
    "product_name" : "Red Hat Satellite 6",
    "fix_state" : "Not affected",
    "package_name" : "satellite:el8/candlepin",
    "cpe" : "cpe:/a:redhat:satellite:6"
  }, {
    "product_name" : "Red Hat Single Sign-On 7",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:red_hat_single_sign_on:7"
  }, {
    "product_name" : "streams for Apache Kafka 2",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:amq_streams:2"
  }, {
    "product_name" : "streams for Apache Kafka 3",
    "fix_state" : "Fix deferred",
    "package_name" : "netty-codec-http",
    "cpe" : "cpe:/a:redhat:amq_streams:3"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-42585\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-42585\nhttps://github.com/netty/netty/security/advisories/GHSA-38f8-5428-x5cv" ],
  "name" : "CVE-2026-42585",
  "mitigation" : {
    "value" : "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
    "lang" : "en:us"
  },
  "csaw" : false
}