{
  "cveId": "CVE-2026-42584",
  "url": "https://patchblox.com/security/cve/CVE-2026-42584",
  "summary": "CVE-2026-42584 is fixed in 9 products on 1 platform, first by libnetty-buffer-java 1:4.1.48-16ubuntu0.1~esm2, released May 13, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "eap8-eap-product-conf-parent: Netty is an asynchronous, event-driven network application framework",
  "description": "Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpClientCodec pairs each inbound response with an outbound request by queue.poll() once per response, including for 1xx. If the client pipelines GET then HEAD and the server sends 103, then 200 with GET body, then 200 for HEAD, the queue pairs HEAD with the first 200. The HEAD rule then skips reading that message\u2019s body, so the GET entity bytes stay on the stream and the following 200 is parsed from the wrong offset. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.",
  "published": "2026-05-13T12:17:00Z",
  "severity": "important",
  "cvss": 7.3,
  "epss": 0.00838,
  "epssPercentile": 0.58002,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "eap8-eap-product-conf-parent",
      "release": "RHEL 10",
      "fixedVersion": "801.7.1-1.GA_redhat_00001.1.el10eap",
      "fix": "RHSA-2026:49700",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-49700",
      "released": "2026-06-12T14:50:43Z"
    },
    {
      "platform": "linux",
      "product": "eap8-netty",
      "release": "RHEL 10",
      "fixedVersion": "4.1.135-1.Final_redhat_00001.1.el10eap",
      "fix": "RHSA-2026:49700",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-49700",
      "released": "2026-06-12T14:50:43Z"
    },
    {
      "platform": "linux",
      "product": "eap8-netty-transport-native-epoll",
      "release": "RHEL 10",
      "fixedVersion": "4.1.135-1.Final_redhat_00001.1.el10eap",
      "fix": "RHSA-2026:49700",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-49700",
      "released": "2026-06-12T14:50:43Z"
    },
    {
      "platform": "linux",
      "product": "eap8-wildfly",
      "release": "RHEL 10",
      "fixedVersion": "8.1.7.1-1.GA_redhat_00004.1.el10eap",
      "fix": "RHSA-2026:49700",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-49700",
      "released": "2026-06-12T14:50:43Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-buffer-java",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1:4.1.48-16ubuntu0.1~esm2",
      "fix": "libnetty-buffer-java 1:4.1.48-16ubuntu0.1~esm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libnetty-buffer-java-1-4.1.48-16ubuntu0.1-esm2",
      "released": "2026-05-13T12:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-common-java",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1:4.1.48-16ubuntu0.1~esm2",
      "fix": "libnetty-common-java 1:4.1.48-16ubuntu0.1~esm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libnetty-common-java-1-4.1.48-16ubuntu0.1-esm2",
      "released": "2026-05-13T12:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:4.1.7-4ubuntu0.1\u002Besm6",
      "fix": "libnetty-java 1:4.1.7-4ubuntu0.1\u002Besm6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libnetty-java-1-4.1.7-4ubuntu0.1-esm6",
      "released": "2026-05-13T12:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:4.1.45-1ubuntu0.1~esm6",
      "fix": "libnetty-java 1:4.1.45-1ubuntu0.1~esm6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libnetty-java-1-4.1.45-1ubuntu0.1-esm6",
      "released": "2026-05-13T12:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:4.1.48-4\u002Bdeb11u2ubuntu0.1\u002Besm3",
      "fix": "libnetty-java 1:4.1.48-4\u002Bdeb11u2ubuntu0.1\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libnetty-java-1-4.1.48-4-deb11u2ubuntu0.1-esm3",
      "released": "2026-05-13T12:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:4.1.48-9ubuntu0.1\u002Besm3",
      "fix": "libnetty-java 1:4.1.48-9ubuntu0.1\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libnetty-java-1-4.1.48-9ubuntu0.1-esm3",
      "released": "2026-05-13T12:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1:4.1.48-16ubuntu0.1~esm2",
      "fix": "libnetty-java 1:4.1.48-16ubuntu0.1~esm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libnetty-java-1-4.1.48-16ubuntu0.1-esm2",
      "released": "2026-05-13T12:17:00Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "sles 15.7",
      "fixedVersion": "4.1.133-150200.4.46.1",
      "fix": "SUSE-SU-2026:2308-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2308-1",
      "released": "2026-06-09T08:13:58Z"
    },
    {
      "platform": "linux",
      "product": "netty-tcnative",
      "release": "sles 15.6",
      "fixedVersion": "2.0.77-150200.3.39.1",
      "fix": "SUSE-SU-2026:2308-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2308-1",
      "released": "2026-06-09T08:13:58Z"
    },
    {
      "platform": "linux",
      "product": "netty-tcnative",
      "release": "sles 15.7",
      "fixedVersion": "2.0.77-150200.3.39.1",
      "fix": "SUSE-SU-2026:2308-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2308-1",
      "released": "2026-06-09T08:13:58Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}