{
  "cveId": "CVE-2021-39149",
  "url": "https://patchblox.com/security/cve/CVE-2021-39149",
  "summary": "CVE-2021-39149 is fixed in libxstream-java on 1 platform, first by libxstream-java 1.4.11.1-1\u002Bdeb10u4build0.18.04.1, released December 27, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libxstream-java: XStream is a simple library to serialize objects to XML and back again",
  "description": "XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream\u0027s security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.",
  "published": "2021-08-23T11:15:00Z",
  "severity": "Medium",
  "epss": 0.04735,
  "epssPercentile": 0.91912,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libxstream-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.4.11.1-1\u002Bdeb10u4build0.18.04.1",
      "fix": "libxstream-java 1.4.11.1-1\u002Bdeb10u4build0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libxstream-java-1.4.11.1-1-deb10u4build0.18.04.1",
      "released": "2022-12-27T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libxstream-java",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.4.11.1-1ubuntu0.3",
      "fix": "libxstream-java 1.4.11.1-1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libxstream-java-1.4.11.1-1ubuntu0.3",
      "released": "2022-12-27T16:15:00Z"
    }
  ],
  "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"
  }
}