Vulnerability from bitnami_vulndb
Published
2025-12-03 14:35
Modified
2025-12-03 15:08
Summary
XStream is vulnerable to an Arbitrary Code Execution attack
Details

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which 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's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "activemq",
        "purl": "pkg:bitnami/activemq"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.15.14"
            }
          ],
          "type": "SEMVER"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "last_affected": "5.16.0"
            },
            {
              "introduced": "5.16.1"
            },
            {
              "last_affected": "5.16.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21344"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
  },
  "details": "XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which 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. If you rely on XStream\u0027s default blacklist of the Security Framework, you will have to use at least version 1.4.16.",
  "id": "BIT-activemq-2021-21344",
  "modified": "2025-12-03T15:08:24.036Z",
  "published": "2025-12-03T14:35:22.678Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://x-stream.github.io/changes.html#1.4.16"
    },
    {
      "type": "WEB",
      "url": "https://github.com/x-stream/xstream/security/advisories/GHSA-59jw-jqf4-3wq3"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r8244fd0831db894d5e89911ded9c72196d395a90ae655414d23ed0dd%40%3Cusers.activemq.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r9ac71b047767205aa22e3a08cb33f3e0586de6b2fac48b425c6e16b0%40%3Cdev.jmeter.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGXIU3YDPG6OGTDHMBLAFN7BPBERXREB/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21344"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210430-0002/"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-5004"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujan2022.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    },
    {
      "type": "WEB",
      "url": "https://x-stream.github.io/CVE-2021-21344.html"
    },
    {
      "type": "WEB",
      "url": "https://x-stream.github.io/security.html#workaround"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "XStream is vulnerable to an Arbitrary Code Execution attack"
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.