{
  "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",
  "summary": "libnetty-java 1:4.1.7-4ubuntu0.1\u002Besm6, released May 13, 2026, fixes 5 CVEs in libnetty-java. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "libnetty-java 1:4.1.7-4ubuntu0.1\u002Besm6 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2026-05-13T12:17:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-42578, high severity",
  "supported": false,
  "cveCount": 5,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01065,
  "maxCvss": 7.5,
  "appliesTo": [
    {
      "product": "libnetty-java",
      "productUrl": "https://patchblox.com/security/product/linux/libnetty-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:4.1.7-4ubuntu0.1\u002Besm6",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-42578",
      "url": "https://patchblox.com/security/cve/CVE-2026-42578",
      "title": "netty-tcnative: HTTP Header Injection via HttpProxyHandler Disabled Validation in Netty (bsc#1265243).",
      "priority": "High",
      "severity": "important",
      "cvss": 7.5,
      "epss": 0.01065,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-42584",
      "url": "https://patchblox.com/security/cve/CVE-2026-42584",
      "title": "netty-tcnative: improper handling of inbound responses in \u0060HttpClientCodec\u0060 can lead to response desynchronization",
      "priority": "High",
      "severity": "important",
      "cvss": 7.3,
      "epss": 0.00838,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-42581",
      "url": "https://patchblox.com/security/cve/CVE-2026-42581",
      "title": "netty-tcnative: TE\u002BCL header coexistence in HTTP/1.0 requests bypasses smuggling sanitization (bsc#1265277).",
      "priority": "High",
      "severity": "important",
      "cvss": 7.2,
      "epss": 0.0063,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-42585",
      "url": "https://patchblox.com/security/cve/CVE-2026-42585",
      "title": "netty-tcnative: Netty is an asynchronous, event-driven network application framework (bsc#1265292).",
      "priority": "Routine",
      "severity": "moderate",
      "cvss": 6.5,
      "epss": 0.00267,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-42586",
      "url": "https://patchblox.com/security/cve/CVE-2026-42586",
      "title": "netty-tcnative: CRLF Injection in Netty Redis Codec Encoder (bsc#1265245).",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.00217,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T19:49:26Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}