{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.19.3"
              },
              {
                "introduced": "6.0.0"
              },
              {
                "fixed": "6.2.2"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e216f452084ab01641ac5ae8bf7c0d8777c79e9a"
            },
            {
              "introduced": "14bac13f40958c1a1d3d198051eed32facc4abd1"
            },
            {
              "fixed": "ace8c0c4a603bee86baf4785c63e66735e2b8f00"
            }
          ],
          "repo": "https://github.com/apache/activemq",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33227.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          },
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          },
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          },
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          },
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          },
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          },
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          },
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          },
          {
            "fixed": "5.19.3"
          },
          {
            "introduced": "6.0.0"
          },
          {
            "fixed": "6.2.2"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "Improper validation and restriction of a classpath path name vulnerability in \n\n Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ Web, Apache ActiveMQ.\n\n\n\nIn two instances (when creating a Stomp consumer and also browsing messages in the Web console) an authenticated user provided \"key\" value could be constructed to traverse the classpath due to path concatenation. As a result, the application is exposed to a classpath path resource loading vulnerability that could potentially be chained together with another attack to lead to exploit.\n\n\n\n\n\nThis issue affects Apache ActiveMQ Client: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Broker: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ All: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ Web: before 5.19.3, from 6.0.0 before 6.2.2; Apache ActiveMQ: before 5.19.3, from 6.0.0 before 6.2.2.\n\nUsers are recommended to upgrade to version 5.19.4 or 6.2.3, which fixes the issue. Note: 5.19.3 and 6.2.2 also fix this issue, but that is limited to non-Windows environments due to a path separator resolution bug fixed in 5.19.4 and 6.2.3.",
  "id": "CVE-2026-33227",
  "modified": "2026-07-15T01:49:12.448933923Z",
  "published": "2026-04-07T07:50:58.897Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/06/4"
    },
    {
      "type": "WEB",
      "url": "https://repo.maven.apache.org/maven2"
    },
    {
      "type": "ADVISORY",
      "url": "https://activemq.apache.org/security-advisories.data/CVE-2026-33227-announcement.txt"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33227.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33227"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ Web, Apache ActiveMQ: Improper Limitation of a Pathname to a Restricted Classpath Directory"
}