{
  "fix": "libxstream-java 1.4.11.1-1~18.04.1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libxstream-java-1.4.11.1-1-18.04.1",
  "summary": "libxstream-java 1.4.11.1-1~18.04.1, released December 15, 2020, fixes 3 CVEs in libxstream-java. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "libxstream-java 1.4.11.1-1~18.04.1 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2020-12-15T17:15:00Z",
  "priority": "Routine",
  "priorityTier": 4,
  "priorityReason": "Closes 3 CVEs, none high severity",
  "supported": false,
  "cveCount": 3,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.84968,
  "appliesTo": [
    {
      "product": "libxstream-java",
      "productUrl": "https://patchblox.com/security/product/linux/libxstream-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.4.11.1-1~18.04.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2020-26217",
      "url": "https://patchblox.com/security/cve/CVE-2020-26217",
      "title": "libxstream-java: XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.84968,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26259",
      "url": "https://patchblox.com/security/cve/CVE-2020-26259",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.82392,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26258",
      "url": "https://patchblox.com/security/cve/CVE-2020-26258",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.81817,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T01:43:54Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}