{
  "cveId": "CVE-2025-67735",
  "url": "https://patchblox.com/security/cve/CVE-2025-67735",
  "summary": "CVE-2025-67735 is fixed in 2 products on 1 platform, first by libnetty-java 1:4.1.7-4ubuntu0.1\u002Besm7, released December 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libnetty-java: Netty is an asynchronous, event-driven network application framework",
  "description": "Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.129.Final and 4.2.8.Final, the \u0060io.netty.handler.codec.http.HttpRequestEncoder\u0060 has a CRLF injection with the request URI when constructing a request. This leads to request smuggling when \u0060HttpRequestEncoder\u0060 is used without proper sanitization of the URI. Any application / framework using \u0060HttpRequestEncoder\u0060 can be subject to be abused to perform request smuggling using CRLF injection. Versions 4.1.129.Final and 4.2.8.Final fix the issue.",
  "published": "2025-12-15T17:15:00Z",
  "severity": "Medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
  "epss": 0.0032,
  "epssPercentile": 0.2519,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:4.1.7-4ubuntu0.1\u002Besm7",
      "fix": "libnetty-java 1:4.1.7-4ubuntu0.1\u002Besm7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libnetty-java-1-4.1.7-4ubuntu0.1-esm7",
      "released": "2025-12-15T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:4.1.45-1ubuntu0.1~esm7",
      "fix": "libnetty-java 1:4.1.45-1ubuntu0.1~esm7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libnetty-java-1-4.1.45-1ubuntu0.1-esm7",
      "released": "2025-12-15T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:4.1.48-4\u002Bdeb11u2ubuntu0.2\u002Besm1",
      "fix": "libnetty-java 1:4.1.48-4\u002Bdeb11u2ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libnetty-java-1-4.1.48-4-deb11u2ubuntu0.2-esm1",
      "released": "2025-12-15T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1:4.1.48-9ubuntu0.2\u002Besm1",
      "fix": "libnetty-java 1:4.1.48-9ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libnetty-java-1-4.1.48-9ubuntu0.2-esm1",
      "released": "2025-12-15T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:4.1.48-7\u002Bdeb12u2",
      "fix": "DEBIAN-CVE-2025-67735",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-67735",
      "released": "2025-12-16T01:15:52Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:4.1.48-10\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2025-67735",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-67735",
      "released": "2025-12-16T01:15:52Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "Debian 14",
      "fixedVersion": "1:4.1.48-16",
      "fix": "DEBIAN-CVE-2025-67735",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-67735",
      "released": "2025-12-16T01:15:52Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "4.1.130-150200.4.40.1",
      "fix": "SUSE-SU-2025:4489-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4489-1",
      "released": "2025-12-19T11:01:56Z"
    },
    {
      "platform": "linux",
      "product": "netty",
      "release": "sles 15.7",
      "fixedVersion": "4.1.130-150200.4.40.1",
      "fix": "SUSE-SU-2025:4489-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4489-1",
      "released": "2025-12-19T11:01:56Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}