{
  "threat_severity" : "Important",
  "public_date" : "2026-06-12T14:42:44Z",
  "bugzilla" : {
    "description" : "netty-codec-haproxy: Netty HAProxy PROXY protocol v2 codec: Denial of Service via memory leak from crafted PROXY protocol headers",
    "id" : "2488437",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2488437"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-1286",
  "details" : [ "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.", "A flaw was found in the Netty HAProxy PROXY protocol v2 codec. A remote attacker can exploit this vulnerability by sending a specially crafted HAProxy PROXY protocol v2 header with nested `PP2_TYPE_SSL` type-length-value (TLV) records. This can lead to a memory leak, causing the underlying cumulation buffer to remain permanently pinned and potentially resulting in a Denial of Service (DoS) due to resource exhaustion." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.2.SP1",
    "release_date" : "2026-06-17T00:00:00Z",
    "advisory" : "RHSA-2026:26586",
    "cpe" : "cpe:/a:redhat:apache_camel_quarkus:3.33",
    "package" : "netty-codec-haproxy"
  }, {
    "product_name" : "Red Hat build of Quarkus 3.27.4.SP1",
    "release_date" : "2026-06-17T00:00:00Z",
    "advisory" : "RHSA-2026:26018",
    "cpe" : "cpe:/a:redhat:quarkus:3.27::el8",
    "package" : "netty-codec-haproxy"
  }, {
    "product_name" : "Red Hat build of Quarkus 3.33.2.SP1",
    "release_date" : "2026-06-17T00:00:00Z",
    "advisory" : "RHSA-2026:26017",
    "cpe" : "cpe:/a:redhat:quarkus:3.33::el8",
    "package" : "netty-codec-haproxy"
  } ],
  "package_state" : [ {
    "product_name" : "Cryostat 4",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:cryostat:4"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "package_name" : "openshift-serverless-1/kn-ekb-dispatcher-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "package_name" : "openshift-serverless-1/kn-ekb-receiver-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "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" : "Affected",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-s3-sink-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-s3-source-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-sns-sink-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-sqs-sink-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-aws-sqs-source-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "package_name" : "openshift-serverless-1/kn-eventing-integrations-log-sink-rhel9",
    "cpe" : "cpe:/a:redhat:serverless:1"
  }, {
    "product_name" : "OpenShift Serverless",
    "fix_state" : "Affected",
    "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" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:amq_broker:7"
  }, {
    "product_name" : "Red Hat build of Apache Camel 4 for Quarkus 3",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:camel_quarkus:3"
  }, {
    "product_name" : "Red Hat build of Apache Camel for Spring Boot 4",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:camel_spring_boot:4"
  }, {
    "product_name" : "Red Hat build of Apache Camel - HawtIO 4",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:apache_camel_hawtio:4"
  }, {
    "product_name" : "Red Hat build of Apicurio Registry 3",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:apicurio_registry:3"
  }, {
    "product_name" : "Red Hat build of Debezium 3",
    "fix_state" : "Will not fix",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:debezium:3"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Affected",
    "package_name" : "rhbk/keycloak-rhel9",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Affected",
    "package_name" : "rhbk/keycloak-rhel9-operator",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Affected",
    "package_name" : "rhbk-openshift-rhel9/rhbk-openshift-rhel9",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Build of Keycloak",
    "fix_state" : "Affected",
    "package_name" : "rhbk-rhel9-operator/rhbk-rhel9-operator",
    "cpe" : "cpe:/a:redhat:build_keycloak:"
  }, {
    "product_name" : "Red Hat Data Grid 8",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:jboss_data_grid:8"
  }, {
    "product_name" : "Red Hat Fuse 7",
    "fix_state" : "Will not fix",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:jboss_fuse:7"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 7",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:7"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:jbosseapxp"
  }, {
    "product_name" : "Red Hat OpenShift AI (RHOAI)",
    "fix_state" : "Affected",
    "package_name" : "rhoai/odh-trustyai-service-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_ai"
  }, {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Affected",
    "package_name" : "devspaces/multicluster-redirector-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  }, {
    "product_name" : "Red Hat Satellite 6",
    "fix_state" : "Not affected",
    "package_name" : "candlepin",
    "cpe" : "cpe:/a:redhat:satellite:6"
  }, {
    "product_name" : "Red Hat Single Sign-On 7",
    "fix_state" : "Not affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:red_hat_single_sign_on:7"
  }, {
    "product_name" : "streams for Apache Kafka 2",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:amq_streams:2"
  }, {
    "product_name" : "streams for Apache Kafka 3",
    "fix_state" : "Affected",
    "package_name" : "netty-codec-haproxy",
    "cpe" : "cpe:/a:redhat:amq_streams:3"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-48059\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-48059\nhttps://github.com/netty/netty/releases/tag/netty-4.1.135.Final\nhttps://github.com/netty/netty/releases/tag/netty-4.2.15.Final\nhttps://github.com/netty/netty/security/advisories/GHSA-h2qv-fj59-j46j" ],
  "name" : "CVE-2026-48059",
  "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
}