{
  "fix": "libxstream-java 1.4.15-2",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-libxstream-java-1.4.15-2",
  "summary": "libxstream-java 1.4.15-2, released January 16, 2026, fixes 10 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 1.4.15-2 for Ubuntu 24.10 (oracular)",
  "released": "2026-01-16T01:42:22Z",
  "priority": "Routine",
  "priorityTier": 4,
  "priorityReason": "Closes 10 CVEs, none high severity",
  "supported": false,
  "cveCount": 10,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.82136,
  "appliesTo": [
    {
      "product": "libxstream-java",
      "productUrl": "https://patchblox.com/security/product/linux/libxstream-java",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "1.4.15-2",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-21351",
      "url": "https://patchblox.com/security/cve/CVE-2021-21351",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.82136,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21341",
      "url": "https://patchblox.com/security/cve/CVE-2021-21341",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.77801,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21344",
      "url": "https://patchblox.com/security/cve/CVE-2021-21344",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.7598,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21345",
      "url": "https://patchblox.com/security/cve/CVE-2021-21345",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.72324,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21342",
      "url": "https://patchblox.com/security/cve/CVE-2021-21342",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.4999,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21349",
      "url": "https://patchblox.com/security/cve/CVE-2021-21349",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.46826,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21343",
      "url": "https://patchblox.com/security/cve/CVE-2021-21343",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.46666,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21350",
      "url": "https://patchblox.com/security/cve/CVE-2021-21350",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.15234,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21347",
      "url": "https://patchblox.com/security/cve/CVE-2021-21347",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.14301,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-21348",
      "url": "https://patchblox.com/security/cve/CVE-2021-21348",
      "title": "libxstream-java: XStream is a Java library to serialize objects to XML and back again",
      "priority": "Routine",
      "severity": "Low",
      "epss": 0.13832,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}